Buy the 12″ RoyalStone Synthetic Stone Round Non-Tapered Columns on sale for a great price at our online store!
Products Related To: 12″ Royal Stone Synthetic Stone Round Non-Tapered Columns
A column consists of a shaft with a capital and base. When selecting the column height, please be aware that the height includes the capital and base.
These column walls are through & through
Manufactured Stone
MADE with STONE!
Greater Structural Integrity!
No Maintenance!
No Painting!
These Polymer Stone Columns are created using a mixture of the finest polymer resin and ground limestone, with pigmentation added to order, leading to a decorative stone textured or smooth column that is dependable, durable and virtually maintenance free. Color is fully permeated through the walls of the column creating greater longevity and consistency. Royal Stone Polymer Stone columns are available in a smooth or textured finish, fluted or plain, round and square. Even though these stone styled columns weigh less than one half the weight of their stone or concrete counterparts, Crown-Molding.com Royal Stone columns provide comparative tensile strength and aesthetic appeal.
Royal Stone Polymer products surpass all of the BOCA codes as well as most local codes. The water absorption rate of our columns is less than .001%, thereby reducing the propensity to crack despite climatic change resulting a virtually stain free product.

We sell Royal Corinthian Columns. Royal Corinthian has over 25 years experience in the manufacture of industry specified synthetic stone, previously reserved only for large commercial or residential specification. Royal Corinthian is a leader in quality through reputation, providing a long lasting, sturdy option to the standard “boutique” variety columns available else ware. Crown-Molding.com is very pleased to be one of the few online retail stores permitted to offer the Royal Corinthian line.
For Larger Sizes or Quantities
Just send us an email or give us a call
Select one of these decorative column capitals and bases from the drop down lists above.
Roman Corinthian
Roman Ionic
Scamozzi
Temple of the Winds
Tuscan Capital
Rounded Tuscan Capital
Attic Base
Rounded Plinth Attic Base
Tuscan Base
Rounded Plinth Tuscan Base
Round Smooth Non-Tapered RoyalStone Columns Specifications
Column Diameter | Bottom Shaft Dia | Top shaft Dia | Bead Width | Cut at Bead Loss | First Ring | Minimum Wall Thickness | Available Lengths (feet) |
---|---|---|---|---|---|---|---|
(A) | (B) | (C) | (D) | (E) | |||
8” | 7-5/8” | 7-5/8” | 3/4” | 4-5/8” | 2-1/2” | 3/8” | 6, 8, 9, 10 |
10” | 9-5/8″ | 9-5/8″ | 3/4” | 6” | – | 3/8” | 6, 8, 9, 10, 12 |
12” | 11-5/8” | 11-5/8” | 7/8” | 7” | 4-3/16” | 3/8” | 6, 8, 9, 10, 12 |
14” | 13-5/8” | 13-5/8″ | 1” | 8-1/8” | 4-3/4” | 1/2” | 6, 8, 9, 10, 12, 14, 16, 18, 20, 22 |
16” | 15-5/8” | 15-5/8” | 1-5/8” | 8-3/4” | 5-1/4” | 1/2” | 6, 8, 9, 10, 12, 14, 16, 18, 20, 22, 24 |
18” | 17-5/8” | 17-5/8” | 2” | 9-1/4” | 5-3/8” | 5/8” | 6, 8, 9, 10, 12, 14, 16, 18, 20, 22, 24, 26 |
20″ | 19-7/8″ | 19-7/8″ | 1-1/2″ | 12-1/16″ | 7-5/16″ | 5/8″ | 6, 8, 9, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28 |
24” | 23-7/8” | 23-7/8” | 2-1/4” | 13-3/8” | 8-3/8” | 5/8” | 6, 8, 9, 10, 12, 14, 16, 18, 20, 22, 24, 26 |
Columns to Surround Structural Supports
Column Diameter | Inside Top Shaft Diameter (S) | Largest Round Support | Largest Square Support |
---|---|---|---|
8” | 6-7/8” | 6-3/8″ | 4-1/2” |
10” | 8-7/8” | 8-3/8” | 5-7/8” |
12” | 10-7/8” | 10-3/8″ | 7-1/4″ |
14” | 12-5/8” | 12-1/8” | 8-1/2” |
16” | 14-5/8″ | 14-1/8” | 9-7/8” |
18” | 16-3/8” | 15-7/8” | 11-1/8” |
20″ | 18-5/8″ | 18-1/8″ | 12-3/4″ |
24” | 22-5/8” | 22-1/8″ | 15-1/2” |

Please note Columns that surround structural supports are typically split for reassembly so this chart allows for loss due to saw kerf. Columns that are split are no longer considered load-bearing. The inside diameter of decorative capitals is much smaller than the column shaft so the chart above will not work for decorative capital applications. To insure that the column ordered will surround the intended structural support, the column needs to be split by Royal Corinthian and the shape and size of the structural support needs to be indicated on the purchase order. Royal Corinthian will not accept any liability if columns are purchased not split and do not wrap the published structural support sizes. When a column is ordered full round (not split), it is implied that the column will not be used to surround a structural support. If the contractor intends to drop a full round (not split) column around the structural support, the shape and size of the structural support needs to noted on the purchase order at the time of order.
RoyalStone Load Bearing Specifications
Column Diameter | Load (max lbs.) |
---|---|
6” | 8,000 |
8” | 10,000 |
10” | 14,000 |
12” | 18,000 |
14”’ | 20,000 |
16” | 20,000 |
18” | 20,000 |
20” | 20,000 |
22” | 20,000 |
24” | 20,000 |
28” | 20,000 |
30” | 20,000 |
36” | 20,000 |
42” | 20,000 |
Our Sizes Are Nominal
*Inside diameter relates to the shaft only and therefore columns with a Tuscan Capital. Decorative Capitals sit on top of the column rather than sliding over the shaft, thereby limiting the amount of area for additional support. Additional support is only required when a column is split and still needs to be supportive or load bearing. Split columns are not load bearing.
Custom Colors are available with an additional charge.
![]() |
![]() |
![]() |
![]() |
![]() |
|
![]() |
![]() |
|
![]() |
![]() |
|
Crown-Molding.com can supply larger columns in some instances. Feel free to contact us for a quote.
SKU: RS12-N_T