Slab H20 beams

GBM's slab beams are currently the most resistant in the market.
Available in various sizes, they are made of solid fir.

About GBM's slab beams

GBM H20 and GBM H20+ slab beams are currently the most resistant in the market.

Available in various sizes, the outer parts are made of selected quality solid fir, comb-like coupled using the finger-joint technology, and with a three-layer core.

Upon request, they may come in plastic protections so as to reduce the risk of scratching the outer parts of the beams.

GBM - Travi per solai

Technical features

Below are the features of GBM's slab wooden H20 beams

  • Type of wood: fir
  • Weight: 4.5 kg/m
  • Gluing: melamine resin-based glue, type EN 30, approved for fixing wooden structural components
  • External: made of selected solid fir and coupled with 80 x 40 mm section - milled and perfectly calibrated for an optimal assembly with core
  • Core: three layers of solid fir
  • Surface: treatment with water repellent paint
  • Standard length: 1.95 / 2.45 / 2.65 / 2.90 / 3.30 / 3.60 / 3.90 / 4.50 / 4.90 / 5.90 / max. 6 m
  • Standard packaging: 50/100 pcs per package

Thanks to their perfect assembly, GBM H20 and GBM H20+ beams can be cut and used at any length.

GBM slab beams

GBM slab beams technical data

Dimension Values (a) Tolerance (b)
Beam height 200 mm ± 2 mm
External height 40 mm ± 0,6 mm
External width 80 mm + 0,8 mm/-1,2 mm
Core thickness 28 mm ± 1 mm

a) The values are applied with wood humidity at 12% ± 2%

b) In compliance with the SIST EN 13377:2002 standards


Certificates DIN1052-1:1988-04 DIN1052:2008-12 / Eurocode 5
Resistance Bending Load capacity characteristic limit
Shear strength ZUL Q = 11,0 kN Vk = 23,9 kN
Bending moment ZUL M = 5,0 kNm Mk = 10,9 kNm
Load - Rb,k = 47,8 kN
Sectional modules (1) Wx= 461 cm3
Geometric moment of inertia (1) Ix= 4.613 cm4
Modulus of elasticity E = 10.000 N / mm2
Shear modulus G = 600 N / mm2

1) The values of the sectional modules and the geometric moment of inertia are applied to new beams. A higher safety value must be used for worn out beams.


Technical data sheet

As a tool, the GBM slab H20 beams technical data sheet is useful for worksite operators. The technical data sheet instructs the operator on the main features of the beams.


Download the GBM slab H20 beams technical data sheet in pdf format (0.3 MB)
.

Would you like to see the full catalogue of GBM's beams and panels?

Download the full catalogue in pdf format (2 MB).

Or go straight to the online version.

Content of the catalogue? General information and technical features: type of wood, weight, dimensions (they come in various standard lengths), certificates etc.

GBM's beams and panels catalogue

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