Particleboard is the economical default, MDF is smoother for painting, and plywood is stronger and more moisture tolerant. The choice is driven by the finish, the wet area and the budget, not by a single best board. In wet areas, HMR particleboard or plywood; for painted doors, MDF; for heavy use, plywood.
Particleboard is the economical default.
MDF is smoother for paint but heavier.
Plywood is stronger at the edge and more moisture tolerant.
18 mm is the standard; 16 mm suits some wall units.
Wet areas need HMR or plywood, not standard board.
1. The three boards
Particleboard is made from wood chips bonded with resin. MDF is made from fine fibres, which gives a dense, smooth surface. Plywood is made from layers of veneer, which gives strength and moisture tolerance. Each behaves differently at the edge, under water and under a screw.
2. مقارنة
| الممتلكات | لوح خشب مضغوط | MDF | خشب رقائقي |
|---|---|---|---|
| التكلفة | أدنى | متوسط | أعلى |
| عقد المسمار | الخير | الخير | الافضل |
| رطوبة | Poor unless HMR | فقير | الخير |
| المساحة | خشن | سلاسة | حبوب |
| الوزن | متوسط | ثقيل | متوسط |
The table is a starting point. The finishing system often decides the board, because paint needs a smooth surface and veneer needs a stable core.
3. Strength and screw holding
Plywood holds screws best because the layers resist pull-out. Particleboard is adequate for most hinges and runners but can crumble if a screw is overtightened. MDF holds well but is heavy, which stresses hinges on wide doors.
4. الرطوبة
Standard particleboard and MDF swell when water reaches the core. HMR particleboard slows it; plywood tolerates it better. In a bathroom or laundry, the board choice and the edge sealing matter more than the brand. The HMR guide covers the wet-area requirement.
5. اللمسات الأخيرة
MDF is the best substrate for paint because it is smooth and uniform. Veneer can go on MDF or plywood; plywood gives a better edge but can telegraph grain through a thin veneer. Melamine faces are usually applied to particleboard or MDF. The door finishes guide covers the surface options.
6. كلف
Particleboard is the cheapest, MDF is in the middle, plywood is the most expensive. The gap is smaller than the finished cabinet price suggests, because the board is one line of many. Do not choose the cheapest board and then spend the saving on repairs.
7. Choosing a board
Start with the finish: paint needs MDF, veneer needs a stable core, melamine suits particleboard. Then check the wet areas: HMR or plywood. Then check the weight and the hinges. The plywood vs MDF comparison covers the trade-off in detail.
8. Specifying and checking
Name the board, the thickness, the grade and the edge treatment. Check the core and the invoice at inspection. A board that looks right but has no invoice is a claim, not a specification.
9. قائمة مراجعة قبل الالتزام
قبل التوقيع، تأكد من ستة أمور: جودة اللوحة، طراز الجهاز، نظام التشطيب، معيار التعبئة، نطاق الفحص، وجدول الدفع. يجب توثيق كل منها كتابيًا، وليس عبر مكالمة هاتفية. تُحوّل قائمة التحقق من عرض الأسعار هذه الأمور الستة إلى مقارنة موجزة في صفحة واحدة.
10. الأخطاء الشائعة
الخطأ الأكثر شيوعًا هو مقارنة سعر المصنع بالتكلفة النهائية بعد الشحن. ثانيًا، إغفال تكلفة الفحص في الميزانية. ثالثًا، دفع المبلغ المتبقي قبل الموافقة على الفحص. يمكن تجنب كل هذه الأخطاء بتحديد نطاق العمل كتابيًا وإجراء فحص ما قبل الشحن.
11. كيفية قياس الغرفة
قِس كل جدار عند ثلاث نقاط: الأعلى، والوسط، والأسفل، واستخدم أصغر قياس. نادرًا ما تكون الجدران مربعة تمامًا، وانحناء بمقدار ١٠ ملم على امتداد ثلاثة أمتار يُغيّر نوع الحشو. قِس السقف عند كل زاوية، وسجّل مواقع المقابس الكهربائية، والمشعات، وأنابيب الصرف الصحي قبل الرسم. يوفر المسح الدقيق وقتًا أطول من الرسم السريع، ويحتوي دليل القياس على ورقة قابلة للطباعة.
13. A specification checklist
Write four lines for every material: the product, the grade, the thickness and the surface or edge treatment. A material specified by name alone leaves the grade to the factory, and the grade is where the cost and the performance sit.
14. Questions the factory will ask
Expect four questions: which grade, which thickness, which edge and which batch. The answers should already be in the specification. If they are not, the factory will choose, and the choice will be the cheapest that meets the drawing.
الأسئلة المتكررة
Which carcass board is best?
None universally. Particleboard is the economical default, MDF is smoother for painting, plywood is stronger and more moisture tolerant. Match the board to the finish and the room.
Is plywood worth the extra cost?
In wet areas and heavy-use kitchens, often yes: it holds screws better and tolerates moisture. In dry bedrooms, the premium is harder to justify.
Why is MDF used for painted doors?
MDF has a dense, uniform surface that paints smoothly and does not show grain. It is heavy and needs good hinges.
Does 16 mm or 18 mm matter?
18 mm is the standard for strength and screw holding. 16 mm saves weight and cost in wall units but is weaker for wide drawers and heavy tops.
Can particleboard be used in a bathroom?
Only HMR particleboard with sealed edges, and even then it is the minimum. Plywood or compact laminate is better in a wet room.
How do I check the board?
Look at the core, the edge and the invoice. A board invoice naming the grade is stronger evidence than a colour.
