Subflooring

Framing Over a Complex Foundation, Part II
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Framing Over a Complex Foundation, Part II

This follow-up article to "Mudsill Layout for a Complex Foundation" describes... More

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Framing a Curved Staircase

Tim Uhler frames a curved freestanding stair and finds that it isn't as difficult as he anticipated. More

Quick Tips To Avoid Squeaky Floors
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Quick Tips To Avoid Squeaky Floors

Squeaky floors are more than a nuisance… they are expensive to fix. To help... More

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New Joists for an Old Floor
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New Joists for an Old Floor

The best remedy for a sagging out-of-level floor is putting in new LVL joists and... More

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Subflooring Instruction

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OSB Subfloor Over Decking?

Q: We're building a four-season addition over an existing raised deck framed with PT lumber. Is it okay to install OSB subfloor sheathing directly over the wood decking, or should the decking be removed first? More

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Fix for Bouncy I-Joists?

Q: Instead of glue and nails, my framing subcontractor used screws to fasten the sheathing to the I-joists of a new 14-foot-wide addition. While there are no interior walls bearing on the floor system and no excessive notching in the I-joist flanges - and the joists fall well within the APA's allowable span guidelines - my clients say their floor is excessively bouncy. Does the use of adhesive contribute to the stiffness of an I-joist floor system? Would it help to add midspan blocking? More

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Q&A: Long-Span Floor Joists

Q. Would floor trusses or wood I-joists be stronger over a 26-foot span? More

Q&A: Plumbing Around Floor Trusses
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Q&A: Plumbing Around Floor Trusses

Q: We’re installing a fiberglass tub unit over a truss-framed floor. A small plan... More

Q&A: Purpose of T&G Plywood
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Q&A: Purpose of T&G Plywood

Q: Does tongue-and-groove plywood add extra strength or stiffness to a floor... More

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