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LAMINATED MERBAU BEAMS GL17S

Laminated Merbau structural beams (GL17S), engineered from finger-jointed, glued Merbau sections for deck bearers, joists, and pergola/carport beams. Sizes range from 90x42mm up to heavy 290x80mm sections rated for longer spans.

Frequently Asked Questions

What size beam do I need for my deck or pergola span?

Beam size depends on span, spacing, and load — a builder or engineer will confirm exact sizing from span tables, but generally the wider and deeper the beam (e.g. 240x80mm vs 140x42mm), the longer the unsupported span it can carry.

What's the benefit of GL17S laminated beams over solid timber?

Laminated beams are glued from smaller kiln-dried sections, giving greater strength grading (GL17), better dimensional stability, and less risk of warping or splitting than an equivalent solid-sawn beam, especially in larger sizes.

What length do these beams come in?

Standard length is 3.6m, which suits most bearer and beam spans for residential decks and pergolas.

Can these beams be used outdoors and in ground contact?

They're suited to outdoor structural use such as deck bearers and pergola beams, but should be kept off direct ground contact using appropriate joist hangers, post supports, or bearers to maximise lifespan.

Do you provide span or load advice for these beams?

We can advise on general product specifications, but for structural span and load calculations we recommend checking with your builder, engineer, or local council for your specific project.

Filters

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Merbau 90x42mm Laminated Beam – GL17S

$69.14 - $169.73
$69.14 - $169.73
$69.14 - $169.73
$69.14

Merbau 90x42mm Laminated Beam (GL17S), engineered for versatility and durability in structural applications across Brisbane. Manufactured to AS/NZS...

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$69.14 - $169.73
$69.14 - $169.73
$69.14 - $169.73
$69.14
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Special Order

140x42 Merbau GL17S FJL Handrail

$107.05 - $260.34
$107.05 - $260.34
$107.05 - $260.34
$107.05

Merbau 140x42mm Laminated Beam (GL17S), a premium engineered hardwood designed for both structural strength and aesthetic appeal in decks, pergolas...

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$107.05 - $260.34
$107.05 - $260.34
$107.05 - $260.34
$107.05
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Special Order

190x42 Merbau GL17S FJL Handrail

$124.00 - $435.93
$124.00 - $435.93
$124.00
$115.00 - $379.95
$115.00 - $379.95
$115.00

The 190x42mm Merbau Laminated GL17S Handrail / Beam is a premium, engineered hardwood...

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$124.00 - $435.93
$124.00 - $435.93
$124.00
$115.00 - $379.95
$115.00 - $379.95
$115.00
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Special Order

240x42 Merbau Laminated GL17S Structural Beam

$243.14 - $570.00
$243.14 - $570.00
$243.14
$219.95 - $498.95
$219.95 - $498.95
$219.95

The 240x42mm Merbau Laminated GL17S Structural Beam is a premium, engineered hardwood p...

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$243.14 - $570.00
$243.14 - $570.00
$243.14
$219.95 - $498.95
$219.95 - $498.95
$219.95
Product Image
Special Order

290x42 Merbau Laminated GL17S Structural Beam

$294.46 - $685.25
$294.46 - $685.25
$294.46
$269.95 - $595.95
$269.95 - $595.95
$269.95

The 290x42mm Merbau Laminated GL17S Structural Beam is a premium, engineered hardwood product designed for both structural strength and aesthetic ...

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$294.46 - $685.25
$294.46 - $685.25
$294.46
$269.95 - $595.95
$269.95 - $595.95
$269.95
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Merbau 140x65mm Laminated Beam – GL17S

$164.66 - $386.49
$164.66 - $386.49
$164.66 - $386.49
$164.66

Merbau 140x65mm Laminated Beam (GL17S), engineered structural timber designed for strength and longevity in Australian environments. Laminated from...

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$164.66 - $386.49
$164.66 - $386.49
$164.66 - $386.49
$164.66
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170x65 Merbau Laminated GL17S Structural Beam

$268.80 - $481.18
$268.80 - $481.18
$268.80
$246.40 - $441.08
$246.40 - $441.08
$246.40

170x65 Merbau laminated (Glulam) beams are high-strength, Class 1 durable structural hardwood engineered to GL17 specifications, ideal for expos...

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$268.80 - $481.18
$268.80 - $481.18
$268.80
$246.40 - $441.08
$246.40 - $441.08
$246.40
Product Image
Special Order

190x65 Merbau Laminated GL17S Structural Beam

$288.04 - $672.00
$288.04 - $672.00
$288.04
$257.00 - $575.00
$257.00 - $575.00
$257.00

190x65 Merbau laminated (Glulam) beams are high-strength, Class 1 durable structural hardwood engineered to GL17 specifications, ideal for exposed,...

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$288.04 - $672.00
$288.04 - $672.00
$288.04
$257.00 - $575.00
$257.00 - $575.00
$257.00
Product Image
Special Order

240x65 Merbau Laminated GL17S Structural Beam

$384.00 - $918.00
$384.00 - $918.00
$384.00
$336.00 - $752.00
$336.00 - $752.00
$336.00

240x65 Merbau laminated (Glulam) beams are high-strength, Class 1 durable structural hardwood engineered to GL17 specifications, ideal for exposed,...

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$384.00 - $918.00
$384.00 - $918.00
$384.00
$336.00 - $752.00
$336.00 - $752.00
$336.00
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Special Order

Merbau 290x65mm Laminated Beam – GL17S

$381.06 - $894.44
$381.06 - $894.44
$381.06 - $894.44
$381.06

Merbau 290x65mm Laminated Beam (GL17S), a versatile laminated hardwood beam engineered with AS/NZS 1328 certification for structural reliability ac...

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$381.06 - $894.44
$381.06 - $894.44
$381.06 - $894.44
$381.06
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Special Order

330x65 Merbau Laminated GL17S Structural Beam

$638.95 - $1,486.95
$638.95 - $1,486.95
$638.95
$571.00 - $1,277.00
$571.00 - $1,277.00
$571.00

330x65 Merbau laminated (Glulam) beams are high-strength, Class 1 durable structural hardwood engineered to GL17 specifications, ideal for exposed,...

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$638.95 - $1,486.95
$638.95 - $1,486.95
$638.95
$571.00 - $1,277.00
$571.00 - $1,277.00
$571.00
Product Image Product Image
Special Order

140x80 Merbau Laminated GL17S Structural Beam

$370.16 - $876.00
$370.16 - $876.00
$370.16
$331.00 - $740.00
$331.00 - $740.00
$331.00

140x80 Merbau laminated (Glulam) beams are high-strength, Class 1 durable structural hardwood engineered to GL17 specifications, ideal for exposed,...

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$370.16 - $876.00
$370.16 - $876.00
$370.16
$331.00 - $740.00
$331.00 - $740.00
$331.00
Product Image
Special Order

Merbau 190x80mm Laminated Beam – GL17S

$421.52 - $942.29
$421.52 - $942.29
$421.52 - $942.29
$421.52

Merbau 190x80mm Laminated Beam (GL17S), offering engineered strength and durability compliant with Australian structural timber standards. Laminate...

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$421.52 - $942.29
$421.52 - $942.29
$421.52 - $942.29
$421.52
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240x80 Merbau Laminated GL17S Structural Beam

$620.99 - $1,500.00
$620.99 - $1,500.00
$620.99
$555.00 - $1,241.00
$555.00 - $1,241.00
$555.00

240x80 Merbau laminated (Glulam) beams are high-strength, Class 1 durable structural hardwood engineered to GL17 specifications, ideal for exposed,...

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$620.99 - $1,500.00
$620.99 - $1,500.00
$620.99
$555.00 - $1,241.00
$555.00 - $1,241.00
$555.00
Product Image
Special Order

Merbau 290x80mm Laminated Beam – GL17S

$646.55 - $1,445.33
$646.55 - $1,445.33
$646.55 - $1,445.33
$646.55

Merbau 290x80mm Laminated Beam (GL17S), a high-performance laminated structural hardwood beam certified to Australian standard AS/NZS 1328.Suited t...

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$646.55 - $1,445.33
$646.55 - $1,445.33
$646.55 - $1,445.33
$646.55
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90x42 Merbau GL17S FJL Handrail Rebated

$134.65 - $134.65
$134.65
$134.65 - $134.65
$134.65

Merbau 90x42mm Rebated Laminated Beam (GL17S), specifically machined for efficient joining and seamless installation in structural and decorative a...

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$134.65 - $134.65
$134.65
$134.65 - $134.65
$134.65

Laminated Merbau structural beams (GL17S), engineered from finger-jointed, glued Merbau sections for deck bearers, joists, and pergola/carport beams. Sizes range from 90x42mm up to heavy 290x80mm sections rated for longer spans.

Frequently Asked Questions

What size beam do I need for my deck or pergola span?

Beam size depends on span, spacing, and load — a builder or engineer will confirm exact sizing from span tables, but generally the wider and deeper the beam (e.g. 240x80mm vs 140x42mm), the longer the unsupported span it can carry.

What's the benefit of GL17S laminated beams over solid timber?

Laminated beams are glued from smaller kiln-dried sections, giving greater strength grading (GL17), better dimensional stability, and less risk of warping or splitting than an equivalent solid-sawn beam, especially in larger sizes.

What length do these beams come in?

Standard length is 3.6m, which suits most bearer and beam spans for residential decks and pergolas.

Can these beams be used outdoors and in ground contact?

They're suited to outdoor structural use such as deck bearers and pergola beams, but should be kept off direct ground contact using appropriate joist hangers, post supports, or bearers to maximise lifespan.

Do you provide span or load advice for these beams?

We can advise on general product specifications, but for structural span and load calculations we recommend checking with your builder, engineer, or local council for your specific project.