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We are closed from 2:00 pm, Dec 18 2025, and reopen Jan 12 2026. Online orders placed between these dates will be received and queued upon our return. Happy holidays!

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Plaster Arch Keystones

See our range of Arch Keystones

View ARCH KEYSTONES ONLINE CATALOGUE

K1
K1
K1
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$70.40 ea.
ARCH KEYSTONE Width - 170mm Height -215mm Depth - 60mm Suits Arch Profile 140mm.
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K2
K2
K2
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$54.30 ea.
ARCH KEYSTONE Width - 105mm Height -245mm Depth - 20mm Suits AR69 Ceiling Strip Set.
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K3
K3
K3
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$108.60 ea.
ARCH KEYSTONE Width - 210mm Height -225mm Depth - 100mm Suits Arch Profile 140mm.
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K4
K4
K4
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$123.20 ea.
ARCH KEYSTONE Width - 180mm Height -260mm Depth - 100mm Suits Arch Profile 230mm.
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K5
K5
K5
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$159.70 ea.
ARCH KEYSTONE Width - 170mm Height -310mm Depth - 90mm Suits Arch Profile 280mm.
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K7
K7
K7
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$82.30 ea.
ARCH KEYSTONE Width - 120mm Height -100mm Depth - 35mm Suits Arches CA1 and CA2.
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K8
K8
K8
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$82.30 ea.
ARCH KEYSTONE Width - 105mm Height -85mm Depth - 35mm Suits Robe Arch AR1 and Robe Arch AR2.
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K9
K9
K9
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$98.80 ea
ARCH KEYSTONE Width - 120mm Height -125mm Depth - 60mm Suits AE1,AE2,AE3,AE4 & ASE1 ARCHWAYS.
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K10
K10
K10
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$98.80 ea
ARCH KEYSTONE Width - 150mm Height -170mm Depth - 60mm Suits Arch Profiles 145mm.
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K11
K11
K11
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$123.20 ea.
ARCH KEYSTONE Width - 170mm Height -220mm Depth - 55mm
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Customer Testimonial
Dear Allplasta, This is to say thank you for the excellent service and quality we have received from you over the years, and the latest product is no exception. I am referring to custom made plaster arches cast by your company. These were supplied correct size, ready to install and needed no filling or repair work prior to installation. The smooth edges of the plaster made finishing a simple task, and the final appearance is perfect. Prior to meeting and dealing with you we had inspected other manufacturer’s products and found many of these were of low quality, with frequent voids and imperfections that required remedial work at site. Your helpful comments and cooperative nature make it a pleasure to deal with you and your team, and I wish you continuing success in the coming years. Yours sincerely, David Roberts Director
David Roberts
Customer Testimonial
Hi Andrew, The Pediments made it to Melbourne intact, I would like to thank you very much, they look wonderful. Kind Regards Michelle Hale
Michelle Hale
Customer Testimonial
Hi Allplasta thanks again for the cornice, looks awesome really clean lines & detail. The owners were stoked. Cheers
Ian
Customer Testimonial
Allplasta always has the best quality products, service and prompt deliveries making our jobs run smoothly every time.
Dream Linings
Customer Testimonial
We recently renovated our turn of the century mountain cottage. As part of the process, we had to source very ornate and delicate patterned plaster cornices. I enquired with numerous plaster companies and Allplasta had the best quality & range for our needs. It was a very welcome surprise then to find that in addition, Andrew and his team are authentic, friendly and displayed excellent customer service including very prompt delivery. I wouldn't hesitate in recommending Allplasta.
Annemaree
Customer Testimonial
The best plaster distributors in Sydney. Great pricing and quality products.
LHS Plastering
Customer Testimonial
Beautiful products. Delivered when promised. Great communication advising delivering time and tracking arrival.
Paul Conroy
Customer Testimonial
Always the same. Very good. Great communication. Drivers always friendly and on time.
Paramount Projects