At a 6' span, how much can an SPF 2x4 turned on 3.5" end support?

Question

The ends are secured, so how much load can a 6' span of SPF 2x4 support when turned on 3.5"?

score 8 · Answer 1 · answered Apr 03 '12 at 16:07

8

The Sagulator says it will support about 375 pounds (evenly distributed) before there is noticeable deflection. I recommend you go to the site, read the notes, and play around with the numbers yourself.

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answered Apr 03 '12 at 16:07

mwolfe02

441
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score 6 · Answer 2 · edited Jul 18 '18 at 23:35

6

Check out this site : http://www.msrlumber.org - it has all the answers to spans for most applications. There are several good sites that have tables, just google "lumber strengths".

edited Jul 18 '18 at 23:35

qxotk

105
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answered Apr 02 '12 at 23:58

shirlock homes

58,628
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Bryce · Answer 3 · 2022-07-24T08:24:21.183

1

The American Wood Council offers just the tool you need at http://www.awc.org/calculators/span/calc/

Maximum Span Calculator for Wood Joists & Rafters/ You'll want 'live load', meaning people (and/or stray deer).

edited Jul 24 '22 at 08:24

answered Nov 19 '13 at 04:02

Bryce

11,057
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At a 6' span, how much can an SPF 2x4 turned on 3.5" end support?

3 Answers3

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