Engineered to a Japanese standard.
Japanese Technology
Every design draws on TOSTEM's Japanese manufacturing standards, refined over decades for precision, fit, and finish.
About Selective SystemsQuality Assurance & Testing
Every batch is tested against ASTM, JIS, and AAMA benchmarks for wind, water, and structural performance before it reaches your site.
How we test TOSTEM windowsSurface & Colour Perfection
TEXGUARD coating locks in colour and lustre for up to 40 years, resisting scratches, fading, and corrosion.
Why choose Selective SystemsOn-Time Delivery
Pre-engineered, factory-assembled components arrive window-in-a-box, ready for fast, precise on-site installation.
How we deliver on timeFlexible Pricing
Multiple series and specifications let you match performance to your budget, without compromising on quality.
Get a quote for your budgetCommon questions, answered.
What's a typical size for French doors?
Any height and width combination is possible, though most installations average five to eight feet wide across the double-leaf opening.
Should French doors open inward or outward?
Outward opening keeps more usable floor space indoors; inward opening can improve weatherproofing on exposed sites — the right choice depends on the room layout.
Are French doors as energy-efficient as sliding doors?
With airtight rubber gaskets fitted, French doors can match sliding doors on sealing performance, though the exact result depends on gasket quality and installation.


