Double Hung
Picture Window
Window Trim Options
Window Statistics


TRI-MAX Shapes

Replacement Window

SWS's most energy efficient window with triple glazing, boasting a .22 U-Value, .26 SHGC & DP 40 standard

SWS’s most energy efficient window with triple glazing, boasting a .22 U-Value, .26 SHGC & DP 40 standard

(a DuraGard XT product)

Replacement Windows:  Awnings  Casements  Double Hung  Picture  Product Inquiry  Shapes  Slider




Dual Wall Integrated Lift Rails

Fully Tilting Sash with Recessed Tilt Latches

Dual Wall Interior Dam Leg

Inverted Constant Force Sash Balance

Interlocking Sash Meeting Rails

Deluxe Low Profile Sash Vent Stops

Sloped Sill allows for proper drainage on outside of window

Therma Core Reinforced Meting Rails

Fully Welded Beveled 3 1/4″ Frame

Extended Reach “Cam Action” Sash Lock

7/8″ or 1″ Insulated Glass Decreases Thermal Energy Loss

Exclusive Heavy Duty Extruded Aluminum Screen (Full Screen or Half Screen)

Exterior Glazed Sash

Closed Cell foam-filled bulb seal on lower sash

Super Spacer warm edge spacer to help reduce condensation

Quiet Triple Fin Pile Weather stripping

Fully Welded Sash.  Keeps sash permanently square and true.


Specialty Wholesale Supply (SWSS) is the Maki Corp MANUFACTURING DIVISION. SWS is a leading manufacturer of quality vinyl windowsexterior doors, interior doors,  patio doors,custom millwork at the Mill Shop, metal fabrication, screen enclosures, countertops, vinyl railing, vinyl fencing, and trusses.



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About SWS

SWS was founded in 1969. Products can be purchased through MAKI Building Centers in Lunenburg, Gardner, Sterling or directly through the SWS manufacturing complex featuring several manufacturing plants and centrally located in Gardner, Massachusetts.  As a family-owned business, we strive to make your shopping experience unique, informative, and personal.  SWS caters not only to architects, builders, and contractors, but also homeowners in Central New England.

The SWS staff enjoys working with you on your project whether your needs are large or small.     Contact us for more information.     Quote Request.


TRI-MAX windows (A Duragard XT Product) are:

Made to Order
Made to Fit
Made to Last
Call (866) 416-3916
Measuring Window Openings
Tip -To – Tip

When given a TTT measurement SWS will use the exact width and height dimension furnished, no deductions.   You window will be made that exact size.  Please measure carefully as customer-furnished measurements are the customer’s responsibility.

Measuring by the opening size

Pertains to an existing window frame where sash has been removed but the window frame has been left in place to house the new unit.  SWS when given an opening size dimension we will deduct 1/4″ off  the width and 1/2 ” off the height of dimension to allow room to square up the opening after installation.

Determine united inch

To determine united inch, add the height and the width.  If you have any questions, please do not hesitate to call SWS for answers.    Download replacement window measuring sheet.


TriMax Replacement Interactive Window – Shape

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