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We produce custom Architectural Keystones all style 

Add some chic and fashion to the exterior of your house: make it attractive and memorable! Make your house stand out of the crowd: add individuality and distinctive accent, take advantage of the Royal Foam Keystones. If you care about the look of your house you may wish to add Royal Foam Keystones or other decorative architectural elements that will refresh the look of your property. Use your imagination and take advantage of our useful tips while choosing the practical and elegant Royal Foam Keystones.

Looking to spruce up the exterior of your home or patio, but don’t quite know what to add? 
Perhaps you feel as if your renovations are lacking and require a more stylish element. Keystones can provide this much needed element for various architectural structures. Consider supplementing your bare arches, dull windows, or empty corridor entrances with your very own custom Keystone. 

Royal Foam provides custom solutions to all these problems at an affordable cost. At some point, many home owners and business owners seek to refresh the architectural integrity of their property. One detail that is overlooked is a keystone.

Keystones are generally used as an ornament

, positioned at the apex of an arch. Typically, over windows, doors, corridors and hallways. Before keystones could be fabricated out of foam, they had to be molded either from stone or wood. This was very difficult to do, time consuming, and was very costly. Thanks to the technological wonder of high density EPS foam, it is no longer as strenuous and expensive to create the keystone that you want. Royal Foam specializes in crafting custom architectural accents which includes keystones. 
Our keystones combine the durability of stone with the cost effectiveness of high density polystyrene. Take advantage of the opportunity to create your very own keystone design. 

Royal foam products are ideal for new constructions and renovations alike. To quickly receive a quote, please give us a call. 

Our staff would be pleased to assist you

in designing a keystone that you feel best suits your décor and taste. We guide you through the size, coating, color and surface finish entirely. Do not hesitate to inquire about creating your own custom design, we welcome all ideas.



If you're searching for beautiful and stylish architectural keystone which combine durability with timeless good look, Royal Foam is the right place. Take your time and browse our comprehensive collection of architectural Royal Foam Keystone products alongside with Royal Foam stucco trims, stucco mouldings, stucco cornices, decorative mouldings, exterior window trims, etc.

Royal Foam Keystones can modernize exterior of any house

, giving it a fresh look and feel. You can choose a pattern of Royal Foam Keystones that will blend finely with your decorating ideas or one that accents the whole house.    Royal Foam has many sizes that can be coped to accommodate our arches, pediments and window heads.

There are four major parameters to consider while choosing the right keystone architectural products: size, shape, quality and design. One look at our online collection of Royal Foam Keystones will give enough ideas to delight any decorator. With a little patience and the right Royal Foam Keystone the process of exterior decoration can be a very rewarding and enjoyable experience.