Introducing LOWDECK Australia's first GL8 Structural engineered bearers & joists treated to H4 for On-Ground use. Finally a timber subfloor solution made for Ultra-Low Decks.

Why use LOWDECK?

Framing timbers on the ground or lower than 150 mm should be termite resistant
and in-ground durability Class 1 or treated to H4 or better.

Source: Technical Design Guide - Forest & Wood Products Australia - Domestic Timber Deck Design

Treated to H4 with Koppers Micro® Timber Treatment Technology, Lowdeck is protected from fungal decay, termites and insect attack. Suitable for in ground use and supported by a treatment warranty of 50 years. Engineered GL8 structural grade (roughly F7 equivalent) and double sealed with a high-quality oil-based primer to provide further protection. LOWDECK is an affordable, easy to work with alternative to steel or aluminium and is a smart upgrade from regular H3 Treated pine joists.

Resources & Spans

Deck Joist Spans - Single Span
Residential Live Load 2.0kPa / N2 W33
Size Deck Joist Spacing (Centres)
300 400 450
44x44 600 550 500
68x44 1000 900 850
88x44 1300 1200 1100
138x44 2000 1800 1750

Deck Joist Spans - Continuous accross 2 or more spans
Residential Live Load 2.0kPa / N2 W33
Size Deck Joist Spacing (Centres)
300 400 450
44x44 600 600 550
68x44 1100 950 900
88x44 1400 1200 1100
138x44 2200 1950 1800

Deck Joist Spans - Single Span
Commercial Live Load 4.0kPa / N2 W33
Size Deck Joist Spacing (Centres)
300 400 450
44x44 500 450 400
68x44 800 750 700
88x44 1000 950 900
138x44 1600 1500 1400

Deck Joist Spans - Continuous accross 2 or more spans
Commercial Live Load 4.0kPa / N2 W33
Size Deck Joist Spacing (Centres)
300 400 450
44x44 500 500 450
68x44 900 800 800
88x44 1200 1100 1000
138x44 1800 1700 1600

Notes
1.     GL8 grade timber used (refer to NZS3604)
2.     Timber treatment H4 (Dry in service)
3.     Deck supporting up to 25mm thick timber decking
4.     Domestic live load is 2.0kPa
5.     Commercial live load taken as 4.0kPa (refer AS/NZS1170, table 3.1 C3)
Full reports available on request.
LOWDECK is treated with Koppers Micro® Timber Treatment Technology to H4. Koppers provides a 50 Year limited warranty against rot & insect attack. For full details please see the Koppers Warranty Document below:

For full details please see Koppers Wood Product Warranty

Please also note that in Australia our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and for compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure. Treated Pine Distributors, 8 Accolade St, Morriset, 2264, NSW, (02) 49735544.

LOWDECK

Engineered H4 Joists & Bearers for Ultra Low Decks


Treatment H4 MicroPro
Strength GL8 Engineered Certified
Finish Double Coat Primed
Color Light Grey
Lengths 3.6m & 5.4m
Warranty 50 Years Limited Warranty on Koppers(TM) MicroPro Wood Treatment Technology against rot & insect attack.

Sizes

# 3.6m 4.2m 4.8m 5.4m
44x44
68x44
88x44
138x44