Tag Archives: post frame quote

New Build Features, Concrete Costs, and a Monolithic Slab

This week the Pole Barn Guru answers reader questions about specific features for a new build, possible costs for concrete for a 60x150x12 red iron building, and installing a monolithic slab in an area with rocky soils.

DEAR POLE BARN GURU: I like a 35′ wide by 45′ deep 18′ high. Ridge running the depth of the barn. I’d like 20′ lean-to’s on each side. 2 14’x14′ doors, one in front and one in back. Want to drive through. I’d like to know if we can have an open floor plan? I’d like all the inside walls to open into the lean-to’s. I was also wondering if we can use roofing panels that allow light through on 1/3 of left lean-to? That area would be used for plants. Let me know if it can be done and we can add some more details to get it done. Thanks. SHANE in BRIDGETON

About Hansen BuildingsDEAR SHANE: Provided you have available space, you might want to consider a 36′ x 48′ main building, as it is more efficient in materials usage and will likely be roughly same in investment. Yes, you can have an open floor plan, with no inside walls between main building and lean-to areas. While it is possible to use opaque white translucent polycarbonate panels for portions of roofs, they can prove to be problematic. From a structural aspect, polycarbonate will not adequately transfer wind shear loads, so those area will require steel strapping between roof purlins and sheathing. Below this area, everything will seriously bake – including supporting lumber. All of this lumber (below polycarbonate roofed areas) should be pressure preservative treated to reduce potential incidence of decay.

Can you estimate concrete cost for a 60x150x12 building? Red iron.

DEAR WALTER: For a red iron building, I would need to see engineer designed foundation plans in order to estimate required concrete for foundation, it will take a significantly greater amount of concrete than would a fully engineered post frame building. For a similar size post frame building, expect to use roughly 11 yards of concrete for footings and bottom collars for columns – this is based upon a 2000 psf (pounds per square foot) soil bearing capacity, Vult (Ultimate design wind speed) of 150 mph (miles per hour) and a Wind Exposure C. https://www.hansenpolebuildings.com/2022/06/wind-exposure-and-confusion-part-iii/


DEAR POLE BARN GURU: I am working with Jackson on a quote for a 40x60x16 pole barn. The plan was to install the barn on a monolithic slab as our soil up here in Rhode Island is rather rocky. My town building inspector informed me that I would need to submit an engineering/stamped plan for my concrete work. Jackson suggested I reach out to you to discuss if there are any alternatives to a monolithic slab and what your recommendations would be. ALEX in WEST GREENWICH

DEAR ALEX: If a monolithic slab on grade ends up being your best alternative, we can provide engineer seals for it within our drawings. Anticipate having to dig a trench 24″ deep around perimeter and having to insulate slab edge.

There are alternatives – least invasive and most affordable will be to excavate square piers at column locations, slab itself will pour on grade.

Either of these would require wet set brackets (included in quote Jackson provided) and insulation requirements would depend upon if building will be heated or not, as well as if radiant heat will be used in slab.

Materials List: Scary Disclaimer

From time-to-time our potential clients will send us a quote from another provider to compare.  Often it includes a materials list. Typically this happens when Brand X is “thousands” of dollars less expensive for what is supposed to be (but rarely is) the same building size, quality and features.

One such company, provides only a list of pieces, and nowhere on the materials list does it state the dimensions of the building, or the load carrying capabilities (wind, snow, seismic).

At the bottom of these lists is the following disclaimer:

You may buy all the materials or any part at low cash and carry prices. Because of the wide variation in codes, Xxxxxxx cannot guarantee the material list will meet your code requirements. These post frame buildings are suggested designs and materials list only. Some items may vary from those pictured. We do not guarantee the completeness or prices of these buildings. Labor, concrete flooring, some finish materials and delivery are not included. Some special order truss sizes may be jobsite delivered. Delivery is extra. This post frame may have been altered from the plan’s original design.”

Personally, I find this statement to be seriously disturbing, if not totally misleading.

Provided the potential client has verified the loading requirements with their permit issuing jurisdiction, any competent provider should be able to guarantee to provide a building which will indeed meet the given loading requirements as well as clearly stating on the quote, what those loads are.

Amazingly this particular company runs advertisements for buildings, and includes prices. How is it then they can say in good conscience, “We do not guarantee the completeness or prices of these buildings”?

Regardless of who might be quoting a given building, it would be my strong encouragement to run, don’t walk away from any prospective provider who will not clearly state on their quote the dimensions, full code and load information.  There also should be an explicit guarantee to fully provide the required materials to complete the building, per the plans. Any not included items should be clearly stated and all price quotes should include jobsite delivery.

Don’t become one of those horror stories where thousands of dollars of materials had to be added because they were left out of the original materials list.  Carefully read every word on the quote you are given, and if you don’t understand it, ask questions.  The one question you didn’t ask may well be the one which cost you thousands of extra dollars “out of budget”.