We offer a very wide range of per-charge kiln capacities to ideally fit your product flow!  Each PCS VacDry Kiln is carefully engineered with components appropriately sized for repeatable schedules and a well controlled drying process.  See our Frequently Asked Questions for general information about how the kilns work.

We refer to each kiln model using the approximate boardfoot capacity, starting with our VacDry VK2.0 that holds roughly 2200 boardfeet of 8/4 lumber (see below).  We've custom built vacuum kilns up to 30,000 boardfeet per kiln charge, so if you'd like a kiln charge exactly matched to your situation...we can do that!

The VacDry VK3.0 has a kiln charge that is up to 50" wide by 16.5' long. This limits it's application for lumber. However, these dimensions make it great for slabs. And with the low load height it is easy to load by hand, making it great for production of squares, dowels, blanks, rounds, and dimensional products.  

Interested in serious high quality vacuum kiln dried baseball bat billet production? The VacDry VK2.0 can hold about 2110 Hard Maple or Ash baseball bat billets per kiln charge, dried from green to 6% in about two weeks.

The VacDry VK7.0 and VK10.0 are the biggest of our regularly produced kilns. They are designed to meet the needs of the largest producers of the forest products industry. With the proper material handling systems, one of these vacuum kilns can produce as much as 730,000 board feet of 4/4 kiln dried Red Oak lumber per year.


Parker Converse and his rocking chairs
"...after talking to at least a dozen experts and getting an equal number of conflicting opinions...this will effectively set some new standards in the drying world. I can't imagine why anyone would want to use traditional methods of air drying for several years then kiln drying for several months if vacuum drying can be so effective with such quick turnaround. Thanks again Dennis." - Parker Converse


Want to get right into a discussion with the engineer who actually designs and builds these kilns?  He's just an email away!

Click below for PDF spec sheets on our most common kiln models, or contact Dennis

Kiln Model Designation Max. Kiln Charge Size Approximate Capacity*
VK2.0 40"W x 42"H x 26'L 2200 boardfeet
VK3.5 40"W x 66"H x 26'L 3600 boardfeet

Kiln Model Designation Max. Kiln Charge Size Approximate Capacity*
VK3.0S 50"W x 42"H x 17'L 2200 boardfeet
VK3.0L 50"W x 42"H x 26'L 2800 boardfeet
VK3.0 50"W x 66"H x 17'L 2900 boardfeet
VK5.0 50"W x 66"H x 26'L 4500 boardfeet

Kiln Model Designation Max. Kiln Charge Size Approximate Capacity*
VK2.5 80"W x 42"H x 17'L 2800 boardfeet
VK4.5 80"W x 42"H x 26'L 4430 boardfeet
VK7.0 80"W x 66"H x 26'L 7200 boardfeet

*ideal volume of 8/4 lumber, reduced to 80% of theoretical maximum: read more


"The experiments of drying various species and thicknesses has gone very well. The last load had such a mix of things to be sure I ran a slow ramp. 2" maple slabs, 1" twisted and warped Koa slabs with large crotch sections, 1" fir slabs (with no pitch problems) and fir 4"x4"x8' boards, even some spruce 1" and 1.5" blocks mixed in to shim areas of piles that were mixed thicknesses. Everything turned out great, most amazing was the Koa, color unharmed and flat! Hard to believe if anyone had seen how warped they were going in they would not believe that they were the same boards!" - Steve Farrell, Pacific Rim Tonewoods
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