Numerous factors – such as the area’s humidity, weather conditions and even average snowfall – can have a large effect on an LVL beam’s maximum span size. This table is simply a sample and may not be valid for your region.
There are several beam span tables for all the species of wood. Keep in mind that values given by an LVL span size chart are approximate. The table below shows an excerpt from a maximum span for built-up Douglas fir floor beams table for supporting not more than one floor. Minimum bearing length is 1-1/2' (at least one jack stud or cripple is required) unless otherwise noted for a specific table.
Lvl beam span tables full#
A structurally adequate bearing surface under the full width (thickness) of the beam must be provided at each support. This span size only applies to single floors floors supporting additional stories or roofs require sturdier construction and use different LVL span size charts. Spans are measured from center-to-center of supports. For example, if you are using an LVL beam with two plies of 16 inches or three plies of 14 inches with the columns spaced 14 feet from one another, the maximum span size is 36 feet. US EAST FLOOR LOAD TABLES VERSA-LAM 2.1E 3100 (100 Load Duration) KEY TO TABLE: Top Figure - Allowable Total Load plf Middle Figure - Allowable Live Load plf Bottom Figure - Minimum Required Bearing Length at End / Intermediate Supports inches Total Load values are limited by shear, moment or deflection equal to L/240. Then match these figures with the appropriate maximum span size. Use an LVL span size chart for a single floor by finding the size range of LVL beams you are using and the space between the floor’s support columns. Because these floors support the lightest loads, they require the fewest support columns and the smallest LVL beams.
Common single floors include second-story floors or floors over a basement. The simplest type of LVL-based floor is a single floor that does not support an additional load.
0 kommentar(er)
