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Florida Approved Wall Panels, Drip Stop Metal Roofing, and Widest Builds

This week the Pole Barn Guru discusses reader concerns about Florida approved board and batten panels for walls, the use of drip stop or condenstop in residential applications, and what the widest build without support poles could be.

Close up image of Florida on a map with a pin over Tampa.DEAR POLE BARN GURU: I need a 4×8 siding material that has a Florida Product Approval Code. I was hoping to use Georgia-Pacific Plytanium T1-11, but it does not seem to be approved. What would you suggest for a board-and-batten siding that is approved? The barn is 30×48, 14′ side walls. CHRIS in ORLANDO

DEAR CHRIS: Plytanium is not a structural panel, however it could be applied as siding over an approved OSB or plywood sheathing.

JamesHardie Cempanel siding (as an example) has a Florida approval (FL13223). You can stop at your local The Home Depot ProDesk and inquire as to what other readily available options would have Florida approvals.

 

DEAR POLE BARN GURU: Hello, my name is Martin and I am a local building inspector here in Ohio. I do residential and commercial building inspections. I recently inspected a newly built home that had Drip Stop metal installed on the roof. It was installed on 2×4 trusses 2’ on center with pine 2×4 purlins. This new build home has NO plywood or moisture barrier other than the metal drip stop roof. This is a fairly new product. I am a little confused on the proper application procedures for a residential home. Your product is wonderful and it is really catching on here in Ohio, I have it installed on my 1976 residential home, but it was installed right over the existing fiberglass shingles with wood purlins. So with that said can you send me any drawings or application procedures your company recommends for new residential home construction and also anything you recommend for installing the drip stop over an existing fiberglass shingle. Feel free to call my business cell to help explain and walk me through the process. I appreciate your time and any installation procedures your team would recommend. MARTIN in OHIO

DEAR MARTIN: Thank you for reaching out to us. Integral Condensation Controls (Dripstop, Condenstop, etc.) are wonderful products. In order to properly function, they do require proper airflow (vented eave soffits and vented ridge, in correct proportions). Installing over a roof deck (either new construction or a reroof) does defeat purpose of preventing condensation (any warm moist air from attic is prevented from contacting underside of cooler roof steel already), however it would still have benefits of reduced sound transmission and decrease in solar heat gain.

 

DEAR POLE BARN GURU: Is it cheaper to build wider rather than longer? How wide can be built without support beams? KRIS in VEEDERSBURG

DEAR KRIS: Ultimately, your most effective interior layout should override saving or spending a few extra cents per square foot. While perfectly square, is typically going to be more cost effective (due to having less wall surface), as long as your length to width ratio is under 3:1 it normally is not going to significantly impact your costs (provided you are not in an extreme wind area, or excessively tall). While I have built clearspan post frame to 100 feet in width (and had engineered designs of 140 feet), price per square foot generally starts to ramp up beyond 80 foot wide. This will, of course, depend upon applicable roof loads.

This entry was posted in Ventilation, Barndominium, Alternate Siding, floorplans, Building Interior, Professional Engineer, Insulation, Columns, Pole Barn Questions, Pole Barn Homes, Pole Barn Design, Roofing Materials, Pole Barn Planning, Pole Barn Heating, Trusses and tagged , , , , , , , on by .

Raising a Ceiling, Foundation Wall Build, and an Indoor Riding Barn

This Wednesday the Pole Barn Guru answers reader questions about the possibility of raising a ceiling 4′ – 6′ for pickleball, the advice of whether or not to attempt to add a post frame building on top of an 8″ foundation wall– don’t, and the maximum clear span of an indoor riding barn.

DEAR POLE BARN GURU: We currently have a pole barn trusses built on a cement foundation 72’x36′ half office/open shop building that we would like to raise the ceiling height 4′ to 6′ to accommodate pickleball play. What is the most economical way to raise the ceiling? Thank you! DEB in FERNDALE

DEAR DEB: Your most economical solution will be to build another building to play pickleball in. Building should be no less than 34′ x 64′ with an 18 to 20 foot high ceiling. Trying to raise your existing ceiling is going to involve some serious engineering, not to mention challenges in trying to actually make it happen from a construction standpoint.

 

DEAR POLE BARN GURU: I have an existing 8 inch foundation wall that I would like to use in my pole barn build. The foundation is 50 ft x 80 ft so the size suits me perfectly. There are cast in anchor bolts on the top of the foundation wall every 4 ft. What are your thoughts on putting down a pressure treated sill plate then attaching my 14 ft columns to a second sill plate and screwing the 2 sill plates together. For added stability I was also thinking of installing 2 ft x 2 ft 3/4 inch plywood gussets on both sides of the wall to the double bottom plate and the column. I would fasten each plywood gussets with 12 – 3.5 inch GRK structural screws to lock the column to the sill plates. Have you ever seen anything like this done?

Thanks in advance for your reply. MICHAEL

stick frame building collapseDEAR MICHAEL: While I have seen all sorts of things done, most of them were not structurally sound. You have probably seen television news stories of buildings being lifted off of concrete foundations (or blown over). I fear your proposed design solution could become one of those. There are dry set column brackets available, however they are not capable of handling any significant sort of moment (think bending) load. So, I could not, in good faith, recommend using them. If it was my own, my first choice would be to embed columns in ground outside of existing foundation. This results in your strongest possible design solution and will be easiest to construct. My second choice would be to break out concrete foundation at column locations and either embed columns or pour into your existing foundation ICC-ESR approved Sturdi-Wall Plus wet set brackets.

 

DEAR POLE BARN GURU: How wide can you go on a indoor riding barn, before it has to be made out of different materials? I was thinking like 115 feet by 150ish feet by 15 feet high, could you go wider? JACK in RANDOLPH

therapeutic riding arenaDEAR JACK: We’ve found very few clients who actually have needed a clearspan riding arena greater than 80 feet in width. I have had a few of what I like to pleasantly call ‘past lives’. In one such past life, I was a prolific post frame building contractor, with as many as 35 crews building in six western states. Our biggest arenas was 100′ clearspan by 240 feet in length. In a second past life, I owned a prefabricated wood truss plant, where we had engineered designs as great as 140 feet. Hansen Pole Buildings is currently setting up operations to be able to prefabricate wood trusses, so we would be able to clearspan your requested distance. Trusses would be fabricated in half (for shipping purposes) and designed for halves to be joined onsite with an engineered connection. We are likely 90-120 days away (think mid-May) from being able to provide accurate quotations for those sorts of spans.

This entry was posted in Concrete, Footings, Rebuilding Structures, Building Interior, Budget, Columns, Lumber, Horse Riding Arena, Pole Barn Questions, Pole Barn Design, Barndominium, Pole Barn Planning, Trusses, floorplans and tagged , , , , , , on by .

Building Your Own Pole Barn Trusses

Wants to Build His Own Pole Barn Trusses

Reader DANIEL in HAMPSHIRE writes:

“Good evening, I was wondering if I could ask for your help? I have a question regarding truss designs and truss spacing. I’m building a pole barn (50ft wide x 112ft long x 12ft tall). Prices of pole barn kits have skyrocketed just as much as steel buildings. Building this size 3 years ago would have cost a third of the price today. I’m building an indoor fish farm. If you like to know more of my back story you can visit www.steelheadsprings.com I don’t want to waste your time reading it here. I spent years collecting investors and putting up my whole life and it turned out its not enough. However, I found a solution, I must build it myself, I must build everything myself. I have good support here however I don’t have a specialist. Every time I speak to an engineer, they tell me it can’t be done. Right now my problem is trusses. Locally, each 3-ply 6x6x14 post columns retails anywhere between 400 and 500 dollars. I laminated mine for just under a $100. Steel brackets to mount said post columns into concrete with hardware retails around $125 each, I sourced a local shop to build mine for $40 each. Steel sheathing for walls and roof was sourced from social media from an out of business contractor for .30$ on the dollar. Currently trusses are outrageously priced! The few local places are pricing them anywhere between $600 and $900 for the 40-footer and between $800 and $1300 for the 50-footer. One building needs 15 trusses and another two need 8 trusses each. Prices just keep going up, so I’m forced to build the trusses myself. So, I turned to the web. I’ve been educating myself on designs and ideal styles that would suit my buildings.  Already have the concrete columns pored. Pillars are 18-inch diameter and 50-inch deep. Brackets are already installed at 8ft on center. I would like to use the saddle style truss and wedge it at the top. I have 20 inches of middle board notched out to accommodate a saddle truss. I want a 4/12 pitch with 8ft o.c. truss spacing and 2ft o.c. purlin spacing. Because I’m going 8ft o.c. truss spacing I must install the purlins upright on its edge. This works perfectly because it gives me plenty of room for insulation to be installed flush with the steel. I have no overhangs and my heel is 10″. I found a company on the web (medeek designs). They design the geometry of the trusses. I basically plug in the lumber and the software does the rest. It designs the truss and with a simple click of the mouse I can get exact dimensions of my tc, bc and the webbing. However, it does not explain what size of lumber I should use to achieve the desired clear span goal. I must go to an online retailer and look up a truss and copy their design to plug in the information. I need your help; my land is in an unincorporated county which basically allows me to do anything that I want. I just must follow simple rules with foundation and snow/wind loads. Top Chord live load is 30psf, Top Chord dead load is 7psf, Bottom Chord live load is zero and Bottom Chord dead load is 10psf. I chose 12ft height because it is just tall enough for my needs and it’s sturdy enough for the wind and snow loads. I almost built 4-ply columns, but I decided to go with three because I would obtain the same rigidity with girts spacing of 24-inches instead of 36-inches. I built a 20-ton gusset plate press, and I used the software to build a sample truss. I tested it to the best of my abilities, and it stood its ground. I watched a few videos where some people installed wooden “gusset” plates as additional support over the steel plates. Some even used glue. I know that I want to over engineer this truss to make sure it stands the time. It leaves a good story for the upcoming generations about how we built this from the ground up. I still recall hearing stories from my grandfather and father how they both built their homes. I will attach a few pictures of the drawings that I have. Both 50-foot and 40-foot trusses should be double fink as this truss is rated for 40-60ft clear span. I was going to use 2×8 for both top chords and bottom chords with 2×4 for the webbing. The 40-footer truss isn’t the problem because the truss only has one cut in the bottom chord at the 20ft mid-point. The 50-footer truss is the big issue. If we assume that 2×8 lumber is strong enough for the construction, where should the bottom chord be spliced/connected as my common sense calls for a one 20ft middle section and two 15ft outer sections. If that is ok, what about the top chord, where should the 20ft board be extended? I’m so sorry for taking so much of your time, I hope this is enough information and I hope it makes sense. Can you please help? Thank you.” 

Mike the Pole Barn Guru:

Let’s start with the disclaimer at www.medeek.com:

The truss designs produced herein are for initial design and estimating purposes only. The calculations and drawings presented do not constitute a fully engineered truss design. The truss manufacturer will calculate final loads, metal plate sizing, member sizing, webs and chord deflections based on local climatic and/or seismic conditions. Wood truss construction drawings shall be prepared by a registered and licensed engineer as per IRC 2012 Sec. R802.10.2 and designed according to the minimum requirements of ANSI/TPI 1-2007. The truss designs and calculations provided by this online tool are for educational and illustrative purposes only. Medeek Design assumes no liability or loss for any designs presented and does not guarantee fitness for use.

Moving forward, Building Codes and ANSI/TPI have had several changes since Medeek put this information out. Most jurisdictions are using 2018 or 2021 versions of Codes and ANSI/TPI 1-2016.

I have previously opined in regards to site built trusses: https://www.hansenpolebuildings.com/2018/12/site-built-roof-trusses/

I spent two decades in management or owning prefabricated metal connector plated wood truss plants. In my humble opinion – attempting to fabricate your own trusses of this magnitude is a foolhardy endeavor, for a plethora of reasons:

1) You want to build trusses only from a fully engineered design, specifying dimensions, grades and species of all wood members, as well as detailing dimensions of all connections. Besides dead and snow loads, design wind speed and exposure need to also be considered. Do NOT try to copy someone’s online design, as it is likely to prove inadequate.

2) It is unlikely you will be able to obtain lumber graded higher than #2, without a special order. A 40 or 50 foot clear span truss with your specified loads is going to need some high grade lumber for chords – expect to see MSR or MEL lumber (read more here: https://www.hansenpolebuildings.com/2012/12/machine-graded-lumber/).

3) You will be unable to purchase steel connector plates of sufficient size and thickness to connect members. This leaves you with having to invest in Struct 1 rated plywood to cut into gussets.

4) Should you have a failure from building your own trusses without an engineered design, your insurance company can easily get themselves out of having to pay your claim.

Per your statement, “I know that I want to over engineer this truss to make sure it stands the time.”

Do yourself a favor and find a way to invest in prefabricated trusses. It will give you peace-of-mind you will not get otherwise.

This entry was posted in Pole Barn Planning, Trusses, Professional Engineer, Pole Barn Questions, Pole Barn Design, About The Pole Barn Guru, Constructing a Pole Building and tagged , , , , , , , , , , , , on by .

Wide Clearspan Barndominium Floors

Wide Clearspan Barndominium Floors
Multi-story post frame barndominiums are embracing a great feature found in better stick framed homes – engineered prefabricated wood floor trusses.
Loyal reader RICK in MONTICELLO writes:

“First off, thanks for sharing your knowledge and experience in the blog and answering questions regarding post frame construction with us laymen!
It is very educational and enlightening.

Kicking around ideas currently. Have a 50ish x 80ish building in mind.
And since you suggest working in 6 foot multiples. We’ll go with a 54′ x 84′ two story building.

Thinking about 12′ clear inside height grade level and living upstairs (actually a lake house so to speak).
You mention you have 48′ free spanned with floor trusses.
I’m curious how deep they are and what centers they are installed at.
As I’d like to clear span the 54′ if possible.

My questions and curiosities are:
• You aware of any fabricated wood floor trusses spanning longer than the 48’ you have?
• Would the floor trusses be prohibitive, as far as cost and losing a lot of height due to the required depth they would need to be?

If I free spanned the whole building at 12” centers I’d need 82 of them.
Working from an assumption they would have to be on 12” or 16” centers raises the below questions:

• How is this done in post frame?
• Would I require regular stud walls between each post that first 12’ of building height for the floor trusses to rest upon to transfer the loads to the ground/ foundation?

Hopefully not too lengthy.

Thanks in advance”

Mike the Pole Barn Guru says:
Thank you very much for your kind words, they are greatly appreciated.

With typical residential live loads of 40 psf (pounds per square foot) and dead loads of 10 psf, normally floor trusses are spaced every two feet and their depth will be roughly an inch per every foot of distance spanned. 54 foot clearspan is certainly well within range of prefabricated wood floor trusses.

Even with all of my years as a manager of owner of truss plants, 48 feet is as wide as I have participated in – although for our own personal shouse (Shop/house), we wish we would have gone 12 feet wider (no matter what size you build, it is never big enough). Your added investment, for floor itself, between having a myriad of internal columns, or clearspanning is roughly four dollars per square foot. For what it adds in downstairs usability by not having columns or walls to work around, it is worth every cent in my mind. Add to this it allows for all utilities to be hidden from view and they are a winning combination. As we are providing more barndominiums seemingly every day, we have many clients taking advantage of clearspan floor trusses and have never heard a regret from having done so!

Most usually floor truss ends are supported from beams attached to wall columns. This eliminates having to have load carrying stud walls between columns, as well as thickened slab edges or continuous footings and/or foundations. In order to maintain ceiling heights, your building will have to be made taller. In most instances, adding a few feet to a building’s height is relatively affordable.

This entry was posted in Post Frame Home, Barndominium, Pole Barn Questions, Pole Barn Design, Shouse, Pole Barn Planning, Shouse, Trusses and tagged , , , , , , on by .

Building Near Nashville, Engineered Plans, and Clear Spans

Today the PBG answers questions about building near Nashville, engineered plans for a possible client, and the possible clear span of trusses.

DEAR POLE BARN GURU: Can we have this built near Nashville TN? CRAIG in SAN CLEMENTE

Nashville Tennessee on a map

 

DEAR CRAIG: We can provide a new Hansen Pole Building kit package anywhere in the United States.

 

DEAR POLE BARN GURU: Hello, We are interested in one of your barn plans for purchase. We will need engineered plans to submit to our local county development team for gaining approval and permits. Can we get the engineered plans first? TINA in SNOHOMISH

DEAR TINA: Thank you for your interest in a new Hansen Pole Building. You will need to complete a building department questionnaire which provides us the necessary load information we need to properly design your structure, with that we guarantee our third-party engineered plans will pass a structural approval. Usually your plans will be sent to you in seven to 10 days after you have electronically approved your documents.

 

DEAR POLE BARN GURU: What is the greatest clear span available? KEITH in NEWARK

DEAR KEITH: In most geographic areas 80 foot, however there are some parts of the country where we can provide as wide as 100 feet.

 

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This entry was posted in Pole Barn Questions, Pole Barn Design, Trusses, Professional Engineer and tagged , , , , , , on by .

Reduce Heat, Garage Kits, and Updates to Aging Building

Reduce Heat, Garage Kits, and Updates to Aging Building

DEAR POLE BARN GURU: I’m looking to build a 40×48 monitor style barn with a 16×48 loft in the center. I don’t plan to heat or cool the loft but would like to reduce the heat in the summer. My first plan is to use a light color or Galvalume for roof metal. My second idea and where I need more advice is on insulating the roof. I was thinking about first laying down foam board insulation and then putting metal roof down. I’m sure there are issues with this option please help me out. I also want to use the insulation to help deaden the sound when it’s raining. MICHAEL in ENTERPRISE

Wood Horse BarnDEAR MICHAEL: Many different colors of “cool roof” steel are now available, which adds far more flexibility in aesthetics – one is no longer limited to bare Galvalume or galvanized, or white- https://www.hansenpolebuildings.com/selecting-building-colors/
Foam board insulation between the roof purlins and the steel roofing would be one of the worst possible choices you could make, from a structural standpoint. It allows for the roof screws to flex within the thickness of the insulation, creating leaks and reducing the strength of the roof steel to resist wind shear. Some other options would range from installing a radiant reflective barrier under the roof steel, or (better yet, although more expensive) using closed cell spray foam insulation.

DEAR POLE BARN GURU: Hello, I am interested in one of the garage kits I found on The Home Depot’s website. I would like to see floor plans and interior dimensions for this kit. And what size would a cement pad need to be to fit under this structure? 48ftx60ft? Hope to hear back soon. Thank you! DAYNA in EAST TEXAS

DEAR DAYNA: The beauty of post frame buildings is a concrete slab is not required in order to support the building. As to floor plans – unless otherwise requested by a client, most post frame buildings are clearspan structures, without any interior columns or partitions. This allows for the total flexibility to place walls wherever one chooses, if any. The quickest way to hear back soon is to include an email address to send responses to.

 

DEAR POLE BARN GURU: Hello. We are starting to look into getting some new insulation and facing put in our shop. The current product is at least 15-20 years old. We were going to just carefully wipe down the dirty putter facing and postpone this project for another year or two, but that job in itself quickly became a hassle. As we are currently looking into which insulation and facing we will replace it with, we are trying to figure out what kind of insulation facing was originally put on that we have right now. The facing itself is exposed on the walls and ceiling besides the first 8’ of wall cover at the bottom. Do you know of any way to determine what type of facing we have? I attached a few pictures of it in case you might be able to help out with any guesses…

Thanks a lot for your help! JON in HANOVER

DEAR JON: Your metal building insulation has a WMP-10 facing, which is generally used in a typical metal building application where the walls are exposed to light to moderate traffic. It obtains a mid-grade durability. The front side is composed of polypropylene insulation facing, with a white kraft paper backing on back side. WMP-10 is slightly heavier than WMP-VR facing.


 

This entry was posted in Insulation, Roofing Materials, Pole Barn Planning, Trusses, Concrete and tagged , , , , , on by .

Covered Arena, Nail Numbers, and Clear Spans!

DEAR POLE BARN GURU: My daughter has taken up roping, and I would like to build a covered arena so she can practice year round. Note I said covered, not enclosed. I am not sure I can afford an enclosed arena, but can a covered arena. My question is, what size should this be? I have read that 120 x 240 is the smallest. Also, she does poles and barrels. We would use the arena for this also.
thanks GEORGE in HOPKINSVILLE

Arena InteriorDEAR GEORGE: Having raised a “horse” daughter, I can empathize – it is not a hobby for the faint of pocketbook. In post frame construction, it is often more economical to cover some or all of the sides, rather than constructing just a roof. For roping, even the professionals usually stick to 70 to 80 foot widths and 18 foot eave heights, in order to keep the investment down. For barrel racing, 120 foot does seem to be the most common competitive width, however when faced with erected costs which can run easily upwards of a quarter of a million dollars compromises are usually made to fit within a more comfortable budget amount (again, usually going with a narrower width).

 

DEAR POLE BARN GURU: How do you figure per SQ FT how many nails you will need. MIKE in SIOUX FALLS

DEAR MIKE: Square footage really has nothing to do with the number of nails needed. For 10d common framing nails, a general rule is five pounds for each 20 dimensional 2” lumber pieces. Nailing T1-11, wood or composite sheeting with 8d commons? Usually a pound will do about two 4’x8’ sheets. For joist hanger nails, conventional 2×6 hangers take a pound of 10d common x 1-1/2” nails for each eight hangers.

Keep in mind these are merely approximations. Actual usage may vary due to specific building design requirements or individual installation techniques.

DEAR POLE BARN GURU: I’m looking at your 60×120 pole barn kit.
Is that a clear span? I’m planning on making a riding arena and not wanting poles in the riding area.

Thanks MIKE in ARDMORE

Horse ArenaDEAR MIKE: Unless you for some reason wanted to have interior columns, the 60’ x 120’ pole barn (post frame building) kit package would indeed be a clearspan. We can also provide wider, longer or a combination of the two. For more reading on perfect riding arenas: https://www.hansenpolebuildings.com/2012/07/the-perfect-indoor-riding-arena/.

 

 

This entry was posted in Pole Barn Design, Trusses, Sheds, Horse Riding Arena and tagged , , , , , on by .

Glu-Lam Solution, Building Hawaii? and Riding Arenas

A Glu-Lam Solution? Buildings in Hawaii? and Riding Arenas

DEAR POLE BARN GURU: Hi, I’ve come across your site many times in search for what I’m looking for in a building. One of the things I’m finding difficult is higher pitch, even just 6/12, that is wood based, without web (open), with a fairly wide span available.

Today I came across your article on box beam so I put that idea on hold. I have been interested in glu lam but I don’t want to employ an expensive architect to design it. My thought was 48, 50, or 60 foot maximum width. I have found examples the same or larger even.

Can you provide something like this?

Thanks, BARRY in RACINE

DEAR BARRY: I’ve had challenges with finding an engineer who can make even a 40 foot side span work using the box beam concept work using dimensional lumber. I’d suggest you contact either Dale at Timber Technologies (https://www.timber-technologies.com/titan.phtml) or Duane at Gruenwald Engineered Laminates (https://gruen-wald.com/). Both of them manufacture glu-laminated columns. If there exists a design solution, one or both of them are the people who can solve it for you.

 

DEAR POLE BARN GURU: Hello, Do you build in all 50 states? We live in Ohio and have a pole barn and love it. We were thinking about moving to Hilo, Hawaii. Can you tell me if you build in Hawaii? Thanks, AARON in CAMP RAVENNA

DEAR AARON: While Hansen Pole Buildings is not a contractor, and therefore does not construct anything for anyone anywhere, we do provide complete post frame (pole barn) building kit packages to all 50 states, including Hawaii.

DEAR POLE BARN GURU: We are looking at having an arena constructed and would like to know if you can do a 120 x 250 clear span. JODI in HOPKINSVILLE

DEAR JODI: While a 120 x 250 clearspan can be done, it is going to prove to be phenomenally expensive (whether in wood frame or all steel). Most often clients determine clearspans of 80 feet will better meet with their pocketbooks, while still allowing for the majority of training and riding needs. One of our Building Designers will be in contact with you shortly to discuss your needs and options.

 

 

 

This entry was posted in Pole Barn Design, Constructing a Pole Building, Trusses, Horse Riding Arena and tagged , , , , , , on by .

Clear Span Truss Length, Loft Support Columns, and a Footing at OHD!

DEAR POLE BARN GURU: What is the widest clear span I can get with a 20 # live load and a 25# ground snow load. THOMAS in LACEY

Arena InteriorDEAR THOMAS: Quite comfortably and affordably 80 foot. I’ve done up to 100 foot clearspans in this loading combination however many truss plants do not have the capability to fabricate or ship trusses 100′ long in one piece.

DEAR POLE BARN GURU: While waiting for my materials to arrive for my Hansen building, I was reviewing the plans for my building saw my loft flooring 2×12’s are notched into the posts which I understand the reasoning. My question is what are the rules for notching posts and still maintaining structural integrity of the post. ED in BETHUNE

DEAR ED: There are some “rules” for notching wood members, however they apply to floor joists and stud walls in conventional light-frame construction, not to columns in post-frame construction. The limitations for notches in columns would depend upon the placement of the notch and the ability of the remaining timber to carry the imposed loads. Columns are subject to forces of bending and compression. In compression columns are very strong and rarely is over 10% of the strength of the column needed to carry the downward loads. As long as the notch is done to insure a tight fit and the connection between the column and the member fitting into the notch is done properly the downward loads will be carried through the column as if it was never notched at all.

In bending the maximum moment (bending force) is going to occur somewhere midway between the supported ends (or in your case between the ground and the loft floor), very little bending force occurs at or near the ends. The remaining column at the notch must be adequate to resist shear forces, however the lateral restraint provided by the rigid floor makes these manageable.

DEAR POLE BARN GURU: My 36 x 56 barn is going to have an entrance door and a 16w x 12h garage door on the 36 side of the building. My question is do I have to have a footer or not on the 36 side to make sure the doors will shut and open in the winter do to frost heave? Thank you. TIM in HUDSON

DEAR TIM: In the event you have an inadequately prepared site, then having a continuous footing and foundation below the doors (and extending past the columns on each side of the doors) might be a good investment. Such a system would need to also be deep enough to be below the frost line, which could make it cost prohibitive.

Sites which have been properly prepared rarely have issues with frost heave. You will want to read the series of articles which begins here: https://www.hansenpolebuildings.com/2011/10/pole-building-structure-what-causes-frost-heaves/.

 

 

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Clear Span Width, Interior Sliders, and Roof Quote!

DEAR POLE BARN GURU: What is the widest free span I can get in a pole barn? I live in zip 54474 for snow loads. Needs to have a door opening of 14′.

LES in ROSHOLTDEAR LES: It would be very practical to have a clearspan of up to and including 80 feet. In some markets, we are able to have clearspan trusses of up to 100 feet prefabricated and shipped.

DEAR POLE BARN GURU: Good afternoon,  

I’m writing to see if you offer some sort of light-weight door panel system for an interior application in a courthouse. Our design intent is to have two movable door panels (that appear to be made of solid wood) in a bypassing setup. Each door panel is approximately 12’-0”H x 13’-9”W. Is there some way to achieve this size of panel that is movable by an average person? Maybe something with a fiberglass/steel structure paneled with a wood veneer? LAUREN IN NEW YORK

DEAR LAUREN: Thank you very much for your inquiry. Our sliding doors are appropriate for exterior applications on barns and we provide them only with the investment in a complete post frame building package.

DEAR POLE BARN GURU: Looking to see if a quote for a roof is reasonable.
Endwalls width 20, Eavewalls Length 70, Eave Height 14 feet6 inches, Snow Load 40#, Bay Size Eavewalls 12, Bay Size Endwalls 12, Pitch 4 MICHELLE in BEAVERTON

DEAR MICHELLE: Chances are good the quote for a roof will be quite reasonable. Only one challenge – you did not happen to leave any way for us to contact you!

Need a quote on a complete post frame building package? The easiest and quickest way to get one is to complete a request at: https://www.hansenpolebuildings.com/freequote/ . The more ways you can provide to contact you (home and cell phone numbers, email address, Skype, etc.) the more likely you will be to get a quick response.

This entry was posted in Building Interior, Uncategorized, Pole Barn Questions, Pole Barn Design, Building Styles and Designs, Pole Barn Planning, Pole Barn Structure, Trusses and tagged , , , , on by .
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