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Porta Cumaru is the ideal hardwood timber to meet the challenging requirements of today’s design trends, construction codes and sustainability demands.

Best of all Porta Cumaru is backed up by a company and people that know and love timber and have been a trusted family-run supplier for timber products for four generations. 

Porta Cumaru Hardwood

Porta Cumaru
Features & Applications

Key Features

Near- zero leaching

Janka rated 14.8kN

FSC certified – Meets stringent FSC certification standards

Bushfire rated BAL19

Beams rated F34 and posts rated F27

Class 1 for external above & in-ground applications

Termite Resistant
Natural resistance to termites

Product Range


Select grade
145 x 21mm, 90 x 21mm, 145 x 32mm

2.4m, 3.6m, RL


Dressed pencil round – kiln dried – F34 rated 

90×45, 140×45, 190×45, 240×45, 290×45

2.4m, 3.0m, 3.6m, 4.2m, 4.8m, 5.4m


Square edge, unseasoned green posts – F27 rated 

90×90, 110×110, 135×135, 185×185

2.4m, 2.7m, 3.0m, 3.6m, 5.4m


Pencil round – select grade appearance

40×20, 40×30, 60×30, 63×30, 40×40, 60×40

1.81, 2.4, 3.0, 3.6


Multiple profiles – Round, Rectangle, Oval, Dowel*

47×35 (Round), 70×29 (Rectangle)
70×31 (Oval), 43mm diameter (Dowel*)


*Satin-finish 316 stainless steel fitting and accessories available with the Porta Handrail System when using dowel 43mm.


How to specify

Product + Profile + Length + Species + Code + Certification. For full specification details see Specifying section of the Install Guide.




Porta Cumaru hardwood is the ideal timber to meet the requirements for contemporary exteriors, sustainable design and the National Construction Code.

Sample Request

Porta Cumaru has beautiful mid-brown tones and an interlocking grain.

Install Guide.

This install guide outlines key design, construction and maintenance issues for domestic timber decks. It is recommended that timber decking is installed 400mm above ground level to provide adequate ventilation.

Span Table

Calculate appropriate sizes and stress for decking, beams and posts.
View step by step guide here.


Porta recommends a factory applied pre-coating to protect the timber during transport and installation. Further, Porta Cumaru is supplied with end grain sealer on exposed end-grains before delivery. Porta recommends applying an end grain sealer to cuts on site.

A maintenance schedule is recommended to preserve the dimensional stability of timber and protect the timber from UV and moisture. Apply coatings as per the manufacturers’ recommendations. To retain colour regularly apply a tinted pigmented coating, for a silver-grey appearance, select a clear unpigmented coating.

Protection and Maintenance Guidance 

Species Information

Porta Cumaru is a very dense, extremely hard-wearing Class 1 sustainable timber.
Cumaru Timber Species Information


Porta Cumaru is FSC® certified as responsibly sourced.
Sustainability Information.

Want more information on PORTA CUMARU?

We would love to meet you at your offices and share more information on PORTA CUMARU including displaying a range of samples. Let us know a day and time.
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