John S. Wilson Lumber - Doors (Manufacturers)

Serving the building industry for over 130 years

Exterior Doors

Since 1962 ThermaTru has been producing Steel and Fiberglass entry doors systems that both builders and contractors have counted on for both their quality and style. Both the premium series Classic Craft doors with their stylish lines and high end ornate glass and the Fiber Classic series door available in the oak or mahogany grain offer the beauty of wood without the maintenance. Most entry systems are available in ten days from the time of order and we would be happy to help you with your selection.

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Therma-Tru Doors first created the fiberglass entry door category 25 years ago with the introduction of our Fiber-Classic® wood-grained doors. Today, they are the nation's leading manufacturer of fiberglass and steel exterior door systems, and we are the most preferred brand of entry doors by builders and remodelers.

Exterior Doors

The Masonite Door Company offers a wide selection of Fiberglass and Steel Doors with sidelites and transoms. The fiberglass doors can be painted or stained to match your taste. Known for their durability Masonite doors resist denting, splitting, cracking and warping. With their high quality, energy efficiency, and high performance Masonite exterior doors can meet just about any entry door opening you may have. Come by and see our showroom with Masonite doors on display.

We also offer quality wood doors from:

  • Buffelen
  • Simpson
  • Lemieux


We offer a full line of interior Hollow and Solid core, Wood Paneled Doors and French Doors from Masonite.

We Stock 6 panel hollow core textured doors from Masonite, in prehungs, doors only and bifolds. We also inventory Prehung primed French doors in various sizes .

WE DELIVER - Prompt Accurate Delivery on
Our Trucks to Your Job Site.

We also carry in stock/inventory these door Manufacturers:


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Parksite will feature
DuPont & wood products
April 8th

Parksite will feature
CPG products
(Azek trim, Azek Deck and TimbertechDeck)
May 13th

Reeb will feature
Simpson, ThermaTru, Larson
May 20th

Grabber will feature Hitachi & Paslode
tools and fasteners
June 10th


RDI Railing Trailer will be here
April 22nd

Steel & wire will feature
Quad MAX, Quad foam
and the FastenMaster LOK products.
A demo the PamFast screw gun
and the PamTite glue gun
May 27th

Contact John S. Wilson
Lumber Co, Inc.

Phone: 410.442.2400
Employment Application

Application for
Credit Account:

Personal Account


  • Convenient delivery services, next day delivery guaranteed
  • Plan take-offs,
  • Blueprint copying,
  • Custom millwork

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