Dining Room Furniture Buying Guide: Tables, Chairs & Sideboards
Most dining room mistakes come down to one thing: buying furniture that doesn't fit how you actually eat. As a rule of thumb, allow roughly 60cm of table width per seated person, choose an extending table if your household size changes often, check a chair's joints before its fabric, and pick a sideboard that runs no more than three-quarters the length of your table. Get those four decisions right and the rest of the room falls into place.
In this article
- What size dining table do I need?
- Should I buy an extending or a fixed dining table?
- What should I check on dining chairs before buying?
- Is a bench better than chairs?
- What size sideboard do I need?
- FAQ
What size dining table do I need?
Start with how many people you actually feed on a normal week, not how many you'd like to seat at Christmas. Standard UK dining table height is 71 to 76cm, and the seating rule that matters most is elbow room: aim for at least 60cm of table edge per person. Beyond the table itself, leave at least 90cm between the table edge and the nearest wall or unit so chairs can be pulled out properly. On any side where people need to walk behind seated diners, allow 120cm instead.
For the full sizing maths by room dimension, a seats-by-length table for every shape, and fixed-versus-extendable advice, see our dedicated dining table size guide.
Should I buy an extending or a fixed dining table?
If your household size barely changes, buy fixed. If it swings between weeknight dinners for two and a full table at Christmas, buy extending. That's the honest answer, and it's worth thinking through properly because it's the single biggest decision in this room.
| Extending table | Fixed table |
|---|---|
| Two capacities in one piece, useful if guest numbers vary | One capacity, but a solid top with no moving parts to maintain |
| Good for small or awkward rooms that need to flex | Often better value pound-for-pound at the same table size |
| Check the leaf mechanism runs smoothly and doesn't rock the top when open | No leaf to store, easier to keep the surface flat and clean |
A drop-leaf or folding table is the budget-friendly end of "extending": it folds down to a slim console shape day-to-day and opens out to seat four to six when needed, which suits a flat or a smaller dining nook well.
Budget pick, space-saving
Folding Drop-Leaf Dining Table, Oak & White, Seats 4-6
Folds flat for everyday use, opens out for guests. A practical entry point into "extending" for smaller dining rooms.
Mid-range, fixed
Dining Table, 140 x 75cm, Steel Legs, Seats 4-6
A solid, one-size fixed table with no mechanism to maintain, sized to comfortably seat a family of four to six.
What should I check on dining chairs before buying?
Chairs take more daily stress than any other piece in the room, so the joints matter more than the fabric. The weak points are always the same: where the legs meet the seat frame, and where the backrest meets the seat. For comfort, fabric and seat height, see our guide to the best dining chairs.
- Look for reinforced corner blocks under the seat, not just glued butt joints.
- Metal-framed chairs should have welded, not bolted, leg-to-seat connections.
- Give a floor-model chair a gentle side-to-side shake. Any wobble at the joints now means a loose chair within a year of daily use.
- Wipeable seat covers (PU leather, treated fabric) are worth the small premium if you have children or eat messy food regularly.
A well-built dining chair, kept indoors and used normally, should easily see two decades of daily use before joints or upholstery need attention.
Mid-range, set of 4
Set of 4 Chenille Dining Chairs, Slate Grey, Metal Legs
Sturdy X-frame metal legs and a padded chenille seat, sold as a matching set of four for a full table setting.
Is a bench better than chairs?
Neither is objectively better, they solve different problems. A bench tucks fully under the table when not in use, which is the main reason people choose one for a smaller dining room, and it can seat slightly more people per metre of table edge than individual chairs.
- Choose a bench if floor space is tight, you have young children who need to shuffle in and out, or you want a more casual, sociable look.
- Choose chairs if individual back support matters for long meals, or if you regularly need to rearrange seating for different group sizes.
- Mix both: a bench on one long side and chairs on the other is a common, practical middle ground for family dining tables.
What size sideboard do I need for my dining room?
A sideboard should support the table, not compete with it. As a working rule, keep the sideboard to roughly 60 to 75 percent of your dining table's length, and keep the top within about 5cm of the table's height for a matched look. A slightly taller sideboard is normal and easier to serve from. See our complete home furniture guide for how the dining room fits into the rest of your furniture plan. For the full sizing table, depth and clearance advice, see our sideboard and buffet size guide. To choose by room and layout, see our guide to choosing a sideboard.
- 4-seat table (about 120 to 150cm long): a sideboard around 70 to 110cm wide.
- 6-seat table (about 150 to 180cm long): a sideboard around 90 to 135cm wide.
- 8-seat table (about 180 to 220cm long): a sideboard around 110 to 165cm wide. For a 10-seat table or longer, look for 130cm or more, or consider two smaller units.
- Leave at least 90cm of clear floor between the front of the sideboard and a chair pushed in at the table, so doors and drawers open without blocking the room. If people walk through that gap, allow 105 to 120cm.
A mix of drawers (for cutlery and linen) and cupboards (for serving dishes and bulkier items) covers most households better than an all-open shelving unit, which shows clutter.
Premium pick
High-Gloss Sideboard, 2 Drawers & Cabinets, Black
117cm wide, 36cm deep and 74cm high, with a drawer-and-cupboard mix in a high-gloss finish. Suits a table around 155 to 195cm long, or a living room wall.
Frequently asked questions
What size table do I need for 6 people?
A rectangular table around 150 to 180cm long and 90cm wide comfortably seats six, giving each person roughly 60cm of table edge. A round table of about 120cm diameter also works well for six in a squarer room. See our dining table size guide for the full breakdown by room size and shape.
Is an extending table worth the extra cost?
If your household size genuinely varies (regular guests, growing family, a flat you might upsize from), yes, it earns its keep by removing the need for a second table. If your numbers never change, a fixed table at the same size is usually better value.
How do I know if a dining chair is well made?
Check the joints before the finish. Reinforced corner blocks or welded metal joints, and no wobble when you gently shake the frame, are the two clearest signs. A chair that looks good but flexes at the legs will loosen with daily use.
Should I get a bench instead of chairs?
A bench is the better choice for tight spaces and young families because it tucks fully under the table. Chairs are better if people spend long periods seated, since individual backrests support posture better over a full meal.
How big should my sideboard be compared to my table?
Aim for roughly 60 to 75 percent of your table's length. A sideboard wider than the table it sits near can unbalance the room, unless it runs along a long wall where the extra width looks intentional.
You might also like
- Sideboards and Buffets: What's the Difference and What Size Do You Need? (UK Guide)
- What Size Dining Table Do I Need? A UK Seating & Room Fit Guide
- Living Room Furniture Buying Guide: How to Choose the Right Sofa, Coffee Table and Storage (UK)
- How to Choose an Accent Chair, Recliner or Swivel Chair: A UK Buying Guide
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