Super Heavy Duty Series

Super heavy duty retaining wall posts are hot-dip galvanised universal columns (UC) and PFC end posts from 200UC46 up to 310UC158, engineered for retaining walls over 2 metres, commercial projects and council works. Retaining Wall Supplies stocks full-length sections in Melbourne and cuts every post to the nearest 100 mm to match your engineering schedule, before hot-dip galvanising, with delivery Australia-wide.The 200 UC 46 and 200 PFC below are our most-ordered super heavy duty sections. Larger sizes such as 200UC52, 200UC59.5, 250UC72.9, 250UC89.5, 310UC96.8, 310UC118 and 310UC158, plus 250 and 300 PFC end posts, are cut to order from Melbourne stock. Send us your engineering takeoff or schedule and we will quote the full post list, usually the same day.

Super Heavy Duty Steel Post Sizes (200–310)

Every section below is hot-dip galvanised to AS/NZS 4680 and cut to the nearest 100 mm from full-length Melbourne stock. Because posts are cut from larger lengths, pricing is quoted case by case. Send your list for a same-day quote.

SectionTypeWeight (kg/m)Availability
200 UC 46.2Universal Column46.2In stock, buy above or request cut lengths
200 UC 52.2Universal Column52.2Cut to length, quote
200 UC 59.5Universal Column59.5Cut to length, quote
250 UC 72.9Universal Column72.9Cut to length, quote
250 UC 89.5Universal Column89.5Cut to length, quote
310 UC 96.8Universal Column96.8Cut to length, quote
310 UC 118Universal Column118Cut to length, quote
310 UC 158Universal Column158Cut to length, quote
200 PFCC-section end post25.1In stock, buy above
250 PFCC-section end post35.5Cut to length, quote
300 PFCC-section end post40.1Cut to length, quote

Why order big steel from Retaining Wall Supplies

Most retaining wall suppliers do not stock universal columns above 200 UC. We hold container-imported full lengths of up to 12 m and beyond in Melbourne, cut to your engineering schedule and hot-dip galvanised, typically within a week, then freighted to any Australian metro (allow around 3 extra days to Brisbane). Popular sizes are also stocked in Queensland at fixed lengths. Corner posts and welded fence brackets can be fabricated to the same schedule.

How to get a quote

Email your engineering takeoff, post schedule or drawings to info@retainingwallsupplies.com.au, or call 0485 856 986. Include section sizes, cut lengths and delivery postcode. Standard quotes go out the same day.

Frequently asked questions

Why are there no prices on the larger sizes?

Sections above 200 UC are cut from full-length stock, so the price depends on your cut list: the number of posts, lengths and offcut efficiency. Quoting case by case keeps the price sharp; most quotes are returned the same day.

Are the posts galvanised?

Yes. Every post is hot-dip galvanised after cutting. Watch for cheaper quotes on raw (non-galvanised) steel: buried steel without galvanising will not last in retaining wall service.

What is the difference between UC and UB posts?

UC (universal column) sections are square-profiled with wide flanges: the heavy-duty choice for retaining wall posts. UB (universal beam) sections are taller and lighter per metre; a 310UB46 weighs about the same per metre as a 200UC46. Your engineering schedule specifies which. We stock both. See the Heavy Duty UB range.

How long does a big steel order take?

Cutting and galvanising takes about one week from order confirmation, plus transit, roughly 3 days Melbourne to Brisbane. In-stock fixed-length sizes ship sooner.