16B-021 LVL Span5
LVL 2900Fb-2.0E Floor Beam Quick Reference Tables
Span C
a
r
r
i
e
d Span
TO USE:
1. Select the correct table for the supported floor joist condition (simple or continuous — see notes below).
2. Choose the required center-to-center span for the beam in the Span column.
3. Select the span carried by the beam across the top of the table.
4. Read the beam size or choice of beam sizes from the table.
EXAMPLE: A beam with a 10' span carries 15'-0" simple span joists on each side.SOLUTION: Using the Simple-Span Floor Joists table with 30'-0" span carried, select either 3-1/2" x 11-1/4" or 5-1/4" x 9-1/4."
NOTES:
1. Use the Continuous Floor Joists table where the floor joists are continuous (multiple span) over the beam.
Use the Simple-Span Floor Joists table where the floor joists frame into the side of or end on top of the beam.
2. Span is center-to-center of supports and is valid for simple and equal, continuous beam spans.
3. End supports require 3" bearing. Interior supports require 6" bearing except 7-1/2" is required where bold. The bearing length is based on the compression strength, perpendicular-to-grain, of the LVL. See the Reaction Capacity table on page 4 for additional information.
4. Deflections are limited to L/360 live load and L/240 total load.
5. Beam width can be either a single piece of LVL or built up from multiple plies that are nailed, bolted or connected with other approved fasteners. Refer to pages 14-15 for connection details.
6. Do not use where marked “-”.CONTINUOUS FLOOR JOISTSDESIGN FLOOR LOADS: 40 PSF LIVE, 15 PSF DEADSpan Beam Width
Span Carried By Beam
20'22'24'26'28'30'32'34'36'38'40'
6'-0"3-1/2"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"
5-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"
8'-0"3-1/2"7-1/4"7-1/4"9-1/4"9-1/4"9-1/4"9-1/4"9-1/4"9-1/4"9-1/4"9-1/4"9-1/4"
5-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"9-1/4"9-1/4"9-1/4"
10'-0"3-1/2"9-1/4"9-1/4"9-1/4"9-1/2"11-1/4"11-1/4"11-1/4"11-1/4"11-1/4"11-1/4"11-1/4"5-1/4"9-1/4"9-1/4"9-1/4"9-1/4"9-1/4"9-1/4"9-1/4"9-1/4"9-1/4"9-1/4"9-1/2"
12'-0"3-1/2"11-1/4"11-1/4"11-1/4"11-1/4"11-7/8"11-7/8"14"14"14"14"-
5-1/4"9-1/4"9-1/4"9-1/2"11-1/4"11-1/4"11-1/4"11-1/4"11-1/4"11-1/4"11-1/4"11-1/4"
14'-0"3-1/2"14"14"14"14"14"14"14"----
5-1/4"11-1/4"11-1/4"11-1/4"11-7/8"11-7/8"11-7/8"14"14"14"14"14"
16'-0"3-1/2"14"16"16"16"16"------
5-1/4"11-7/8"14"14"14"14"14"14"14"14"16"16"
18'-0"3-1/2"16"16"18"18"-------
5-1/4"14"14"14"16"16"16"16"16"16"16"16"
20'-0"3-1/2"18"18"---------
5-1/4"16"16"16"16"18"18"18"18"18"18"-
22'-0"3-1/2"-----------5-1/4"16"18"18"18"18"18"-----
24'-0"3-1/2"-----------
5-1/4"18"18"--------- SIMPLE-SPAN FLOOR JOISTSDESIGN FLOOR LOADS: 40 PSF LIVE, 15 PSF DEADSpan Beam Width
Span Carried By Beam
20'22'24'26'28'30'32'34'36'38'40'
6'-0"3-1/2"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"
5-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"
8'-0"3-1/2"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"9-1/4"9-1/4"9-1/4"9-1/4"9-1/4"9-1/4"
5-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"7-1/4"
10'-0"3-1/2"9-1/4"9-1/4"9-1/4"9-1/4"9-1/4"9-1/4"9-1/2"9-1/2"11-1/4"11-1/4"11-1/4"
5-1/4"7-1/4"7-1/4"9-1/4"9-1/4"9-1/4"9-1/4"9-1/4"9-1/4"9-1/4"9-1/4"9-1/4"
12'-0"3-1/2"9-1/2"11-1/4"11-1/4"11-1/4"11-1/4"11-1/4"11-1/4"11-1/4"11-7/8"11-7/8"14"
5-1/4"9-1/4"9-1/4"9-1/4"9-1/4"9-1/4"9-1/2"11-1/4"11-1/4"11-1/4"11-1/4"11-1/4"
14'-0"3-1/2"11-1/4"11-7/8"11-7/8"14"14"14"14"14"14"14"14"
5-1/4"11-1/4"11-1/4"11-1/4"11-1/4"11-1/4"11-1/4"11-1/4"11-7/8"11-7/8"11-7/8"11-7/8"
16'-0"3-1/2"14"14"14"14"14"16"16"16"16"16"-5-1/4"11-1/4"11-7/8"11-7/8"11-7/8"14"14"14"14"14"14"14"
18'-0"3-1/2"16"16"16"16"16"16"18"18"---
5-1/4"14"14"14"14"14"14"14"16"16"16"16"
20'-0"3-1/2"16"18"18"18"18"18"-----
5-1/4"14"14"16"16"16"16"16"16"16"16"18"
22'-0"3-1/2"18"18"18"--------
5-1/4"16"16"16"16"18"18"18"18"18"18"18"
24'-0"3-1/2"-----------
5-1/4"18"18"18"18"18"18"-----
Joist
Beam/Header
Blocking optional (Blocking may be required by code)
Blocking or other approved method of restraint required Hangers
Joist
CONTINUOUS FLOOR JOISTS SIMPLE-SPAN FLOOR JOISTS
Beam/Header