Elevate Your Space

With a custom timber frame from Sound Structures

My name is Cai MacDonald, owner of Sound Structures.

I started this business to combine my love for making high quality lumber on my sawmill and my passion for crafting beautiful structures. I enjoy working with my customers to dream and design the structure that is a perfect fit for their space. Because we start with raw materials, I am able to ensure the quality meets my standards so that when I finish installing with my crew, I am proud of the results. Give me a call today and let’s talk about your project!

Our Services


Perfect for the patio, over the hot tub, on the dock, or at the poolside. Choose from one of our standard sizes: 8x8, 10x10, 12x12 or any combination of the three. All sizes can be constructed with either 6"x6" posts and 6"x8" beams or 8"x8" posts and 8"x10" beams for a bold look. You choose the colour of stain and steel roof, and one of the three options for finish.

DIY Kits

Grab a few buddies and take on a fun weekend project. Our kits come with drawings, instructions, and are ready to assemble. You’ll need your own tools, but everything else is included. No complicated joinery, just bolt together. Shipping is available or pick up from our shop outside of Chesley, ON.

Custom Structures

Something else in mind? Let us quote on your project! We will give you a ballpark price for free, and if you’d like to continue, we’ll charge you a non-refundable quotation fee. This includes a site visit, a set of renderings and a detailed quote. If you decide to go ahead, the fee comes off the quotation.

Types of Finishes

  • Sanded (standard): A rough look that is soft to the touch.

  • Planed: Smooth and sophisticated.

  • Hand Hewn: Unique and timeless.


  • Lighting: 4 flush mount lights add a nice touch to your pavilion Chandeliers or pendant lights are also available options.

  • 10' posts: For a grand feel, upgrade to 10' posts. 8' is the standard.

  • Privacy fence/wall: Close in one, two, or three sides for privacy.

  • Bar top: A nice add, especially great for pavilions over hot tubs.

Like what you see? Contact us today!

Our Process

A lot goes into building something this beautiful. Luckily, we've got the process down pat.


The process starts with a rough sketch or description of your dream. Then we’ll send realistic Sketchup renderings of your project. If you’re happy and ready to move forward, let the building begin!


We use white pine logs sourced from local loggers and process them into lumber using our Timberking Sawmill.

Kiln Drying and Shaping

All of our Tongue and Groove roof boards are professionally kiln dried- so we know that they won’t shrink as they dry out. Then, it is run through a moulder to be processed into toungue and groove.


Each individual timber is pre-cut, pre-drilled, and sanded. Joints are test fitted so when we get to installation, we know everything fits!


We stain the timbers in our shop. We use a high pressure sprayer to ensure proper penetration and coverage.


Our friendly crew installs the timber structures quickly and safely.

Happy Customers

"What a great experience! From working through diff erent plan ideas, to having the crew show up the day they said they would, Cai and team did an amazing job! The Pavillion looks amazing!"

Peter Resume

October 29th, 2023

"I highly recommend Sound Structures. Cai put a portico on the front of my cottage and it looks great. I am getting many compliments on it and they say the portico really changed it up."

Bill King

October 26th, 2023

"We are thrilled with our pergola and covered gazebo. I would highly recommend Sound Structures and look forward to future custom projects. 10/10."

Mike and Jen

July 19, 2023

Frequently Asked Questions

Why white pine?

White pine grows right here in southern Ontario, it is strong and inexpensive. Outdoor structures are a great use for eastern white pine, and staining it prevents from greying (although some folks love the look of weathered white pine!)

Are your kits engineered?

Ontario building codes requires you to get a permit for any structure over 160 sqft; or bigger than 16'x10' or 12'8"x12'8". My standard sizes only go up to 12x12, so they do not require engineered plans for permit applications. Any custom projects that require permits will come with engineered drawings. It is up to you, the customer, to check with your municipality before building any structures!

What base is required?

Our kits can be installed on a variety of bases. Concrete is ideal, but we have installed on decks, docks, and sono-tubes. Before installing, we will make sure that the base is structurally sound and make any modifications if necessary.

Get in touch

Call or text us at 226-568-4651, email at office@soundstructures.ca or submit your information and we'll get back to you shortly.