13800 x 3100 x 400 mm lenght x width x thickness.
Clt wall panel thickness.
Structural composition of clt laminations.
The apa mark of quality.
This maximizes the utilization of crosslam clt to produce cost effective structures.
Clt panels consist of not less than three cross bonded layers of timber typically ranging in thickness between 20mm and 45mm.
Maximum size of a panel.
The timber is strength graded to bs en 14081 1 2005 and glued together in a press which applies pressure over the entire surface area of the panel.
Clt wall engineered floor adapted from trada 2009 27.
Per prg 320 2012 5 8 to 2 thick.
Machine stress rated or visually graded dimensional lumber or scl dried to 12 moisture content before layup.
Clt wall i joist adapted from trada 2009 27.
Alternating grains improve clt panels dimensional stability.
Cross laminated timber clt cross laminated timber crosslam clt is a multi layer mass timber product spanning two directions with precision accuracy resulting in a secure airtight building solution for any floor wall roof or core.
Board thickness typically varies between 5 8 inch to 2 inches with board width ranging from 2 4 to 9 5 inches the panels can be manufactured at custom dimensions though transportation restrictions dictate their length.
Panel section with gaps and grooves sawn in the timber to relieve shrinkage stresses 28.
Clt sizing finished panels are typically 2 to 10 feet wide with lengths up to 60 feet and thickness up to 20 inches.
The panel is then sized and shaped with a computer numerically control cnc machine into a fully construction ready component.
Standardized sizing achieving building efficiencies can be greatly enhanced if the project is designed from the beginning with standard crosslam clt panel sizes such as 2 4 m or 3 m by 12 19 m.
Widths up to 18 feet and lengths up to 98 feet are possible but uncommon.
General clt design principal align grain of major strength axis parallel to primary panel load wall gravity loads vertical grain layers beam design span with major axis ignore layers grain perpendicular to primary panel load 53 clt under stress mmk m1 bsp crossplan en 54 clt under stress 55 ifull ieff mmk m1 bsp crossplan en.
Cross laminated timber clt panels are formed by stacking and gluing together successive perpendicular layers of wood.
