The latest Producer Price Index (PPI) from the U.S. Bureau of Labor Statistics (BLS) dropped recently showing prices for materials used in door and window manufacturing in a generally positive pattern across the board—not only from May to June 2025, but on a year-over-year basis as well.
In June, the monthly PPI for flat glass in the commodity category climbed slightly, rising by 0.2% over the previous month and up 0.1% compared to the previous year. According to BLS, the commodity classification “organizes products and services by similarity or material composition, regardless of the industry classification of the producing establishment.”
The index for flat glass manufacturing in the industry classification continued the positive trend with a 0.8% bump from May 2025, and a full 4% increase on a year-over-year basis. The industry classification measures “changes in prices received for the industry’s output sold outside the industry (that is, its net output).”
The PPI for metal windows dipped by 0.1% from May but notched a 1.8% bump over the June 2024 report. Prices for metal doors and frames increased 1.5% from May to June, improving by 5.4% since last year. Prices for wood window units flatlined from the previous month but clocked an increase of 3.6% on a year-over-year basis. Prices for wood doors for interior and exterior applications also stagnated from May, but unlike its fenestration counterpart, prices dropped 4.4% from June 2024 pricing.
The price for thermoplastic resins and plastic materials dropped both from May 2025 (down 1.4%), and 0.3% down from June of last year. Prices for fiberglass plastic products showed no change from the previous month but had an increase of 4.1% over the previous June.
The cost of builders’ hardware, which includes hardware used in doors and windows, had the most positive results, with a solid 4.7% rise from May to June, and an increase of 10.2% from June 2024.
Monthly and Yearly Change in Door and Window Material Prices
| Category | May to June 2025 | June 2024 to June 2025 |
| Flat Glass | +0.2% | +0.1% |
| Flat Glass Manufacturing | +0.8% | +4.0% |
| Metal Windows | -0.1% | +1.8% |
| Metal Doors and Frames | +1.5% | +5.4% |
| Wood Window Units | 0.0% | +3.6% |
| Wood Doors | +0.0% | -4.4% |
| Thermoplastic Resins and Plastic Materials | -1.4% | -0.3% |
| Fiberglass Plastic Products | 0.0% | +4.1% |
| Builders’ Hardware | +4.7% | +10.2% |