Buying a door sounds simple until you start looking. There are many sizes, materials and prices. Product pages also use words that are hard to understand. If you searched for “portar leisa”, this guide is for you. We will explain what the words mean, which type of plain door is best for each room, how to measure, and what you can expect to pay.
What does “Portar Leisa” mean?
“Portar leisa” is most likely a spelling mistake. The correct words are “porta lisa”. They come from Portuguese. “Porta” means door, and “lisa” means smooth or flat. So a porta lisa is a plain door with a flat face. It has no carved shapes, no glass and no raised panels.
When you search for this keyword, Google mostly shows door shops, price lists and building cost sheets. That tells us what people want to know: what this door is, which size to buy, and how much it costs. You will find all three answers below.
What is a plain door?
A plain door has a smooth, flat surface. You can paint it, cover it with varnish, or buy it with a ready finish. Because the surface is simple, it fits almost any style of home, from modern to classic.
In technical papers used in Brazil, “porta lisa” is a real door type. It sits in the same list as panel doors, glass doors and louvre doors. Brazil also has official standards for wooden doors. For example, NBR 8052 is about door sizes.
One Brazilian maker says its plain door is made from dry wood. The wood is kept under strict moisture control, so the door is more stable. The same maker says you can use it in homes and in shops, with normal hinges and locks. The door faces can be melamine sheets in colours like white or ivory, or thin wood sheets such as Ipê or Angelim.
Three types of plain doors
The outside of a plain door can look the same, but the inside can be very different. This is the biggest thing to check before you pay.
1. Hollow core (semi-oca)
A hollow core door is not empty. It has a frame and a light filling, often a honeycomb shape or thin strips of wood. Because of the empty spaces inside, the door is light. One shop describes this type as easy to open and close every day, and good for rooms with a normal flow of people.
Good points:
- It is light, so one person can usually carry and hang it.
- It is the cheapest choice.
- It works well for inside rooms.
Weak points:
- It gives very little sound protection.
- It can be damaged more easily by hits and daily wear.
- It is not meant for strong security.
For a rough idea of weight, one door supplier says a hollow core door weighs about 7 to 9 kg.
2. Solid core
A solid core door has a thick filling inside. The filling can be particleboard, MDF or blocks of wood. Guides from door sellers say this type is stronger, lasts longer, blocks more noise and handles humidity better than a hollow door.
The same supplier says a solid core door weighs about 23 to 41 kg, depending on the filling. That is a big difference. You may need two people to hang it, and you should use strong hinges. It also costs more. One US guide says the price gap can be as small as 20 to 100 US dollars per door, so it can be worth it for rooms where you want quiet.
3. Solid wood (maciça)
A solid wood door is made fully of wood. It usually lasts longest and feels the most solid, but it is also the most expensive. Most people choose it for special places, not for every room in the house.
Hollow or solid core? A quick comparison
| What matters | Hollow core | Solid core |
|---|---|---|
| Weight | Light | Heavy |
| Price | Lower | Higher |
| Sound protection | Low | Better |
| Strength | Lower | Higher |
| Handling humidity | Weaker | Better |
| Installing alone | Easy | Often needs two people |
A smart plan is to mix them. Many homeowners use solid core doors where privacy and quiet matter, such as a bedroom or a home office. They use hollow core doors in places with less need, such as a closet or a hallway room.
Where can you use a plain door?
Plain wooden doors of this type are made for inside rooms. Sellers often list living rooms, kitchens, bedrooms and bathrooms as good places. They also say the door should stay away from direct sun and rain.
Two warnings from the guides are worth remembering:
- Do not use an inside door as your front door. Interior doors, hollow or solid, are not built for the weather or for security.
- Be careful in wet places. A bathroom is fine in most cases, but the door should not get splashed with water all the time. If your bathroom is very wet, ask the seller about a door made for humid rooms.
Sizes: what to know before you measure
In Brazilian shops, most plain doors are 210 cm high. Widths are often 62, 72 or 92 cm for the door leaf. One technical list shows widths from 60 cm up to 120 cm, in steps of 10 cm, and the numbers often come in pairs such as 70 and 72. One frame kit says it fits doors that are 2.10 m high and 60 to 90 cm wide.
Because of these pairs, always check if the size on the page is for the door leaf (the moving part) or for the opening in the wall. A seller note on one site says the sizes shown are the final sizes of the leaf. That is the kind of detail that saves you from a bad surprise.
How to measure the opening
- Measure the width at the top, the middle and the bottom. Use the smallest number.
- Measure the height on the left and the right side. Use the smallest number again.
- Measure the thickness of the wall. This helps you pick the right frame.
- Leave some extra room. One building guide says to plan for about 3 cm of free space at the top and at each side of the opening, so the frame can be set correctly.
- Plan the gap under the door. One installation manual says the space at the bottom should be about 6 to 12 mm, so the door opens without touching the floor.
Write the numbers down and take a photo of the opening. If you buy online, send the numbers to the seller and ask them to check.
Left or right opening
Plain door listings often say “lado direito” (right side) or “lado esquerdo” (left side). In Brazilian technical words, a right door is a swing door that closes by turning counterclockwise, and a left door closes by turning clockwise. Because people explain this in different ways, look at the seller’s drawing or photo before you buy. If you are not sure, a reversible kit is a good idea, because you can choose the side when you install it.
The frame and the hardware
A frame (batente) holds the door to the wall. It must match the thickness of your wall and the thickness of your door. Many listings sell only the door leaf, without frame, hinges or lock. Other listings sell a complete kit with the door, frame, hinges and sometimes a lock.
A kit saves time and avoids matching mistakes. Some kits also have an adjustable frame, which means the edge can move to fit different wall thicknesses. Look for this if your walls are not standard.
Finish and colour
You have three main choices:
- Raw (cru): The door is ready for you to paint or varnish. It gives you the most freedom.
- Wood sheet: A thin layer of real wood on the face. It looks natural.
- Laminate or UV white: A hard, smooth surface that resists scratches and does not need paint. One shop says its white UV finish keeps the door looking new for longer.
If you paint or varnish the door yourself, cover all sides, including the top and bottom edges. This helps protect the wood from humidity.
How much does a plain door cost?
Prices change by country, shop and season, so use these numbers only as an example of what we saw while researching:
- A pre-painted plain door set (72.5 x 203 cm) in Portugal was 54.99 euros at a big home store.
- In Brazil, a complete 62 x 210 cm white kit with lock, hinges and frame was about R$ 746 on sale.
- A 92 x 210 cm kit in a wood-look finish was about R$ 797.
- For builders, a public cost sheet from February 2026 lists a 100 x 210 cm plain door with frame and trim, without hardware, at R$ 909.69. That price includes labour of about R$ 210.
- The same kind of public data lists fitting a wooden door frame with mortar at about R$ 478 per unit (May 2026).
The lesson is simple. The door leaf is only one part of the cost. Frame, hinges, lock, paint and labour can add a lot.
Simple installation steps
Many makers say a trained installer should do this job, especially for heavy doors. If you want to try it yourself, here are the main steps. Tools you usually need are a saw, a square, a plumb line, a level, a tape measure, a hammer and wood wedges.
- Check that the door and frame match the opening.
- Put the frame in the opening and hold it with wooden wedges.
- Check that it is straight, level and square.
- Fix the frame. Makers use nails, screws, mortar or expanding foam. If you use foam, do not open the door while the foam is drying.
- Mark the places for the hinges and fix them to the door.
- Hang the door with another person helping you.
- Check the gap at the bottom and make sure the door opens and closes smoothly.
- Fit the lock and the trim, then add the final finish.
Easy care tips
- Keep the door away from direct sun and rain.
- Clean it with a soft, slightly damp cloth, then dry it right away.
- Check the hinges and screws now and then. Tighten them if they feel loose.
- Do not hit or lean on a hollow door. It is lighter and can dent more easily.
- Repair small marks early, before water can get into the wood.
Common mistakes to avoid
- Buying a door by price only, without checking the core.
- Mixing up the size of the leaf and the size of the opening.
- Forgetting the wall thickness when you pick a frame.
- Using a bedroom door as an outside door.
- Not checking if hinges and lock are included.
- Ordering the wrong opening side.
Quick buying checklist
Before you pay, ask yourself:
- Is the door for inside or outside? (Plain doors are for inside.)
- Do I need quiet and privacy? If yes, think about a solid core.
- Do I have the width, height and wall thickness written down?
- Do I know the opening side, or do I need a reversible kit?
- Are the frame, hinges and lock in the price?
- Do I want to paint it myself, or do I need a ready finish?
- Who will install it?
Final thoughts
A plain door looks simple, but a good choice comes from small details. Check the core, measure the opening twice, and make sure the frame, hinges and lock are what you need. If you do that, a porta lisa can give you a clean look, daily comfort and good value for many years.
Frequently asked questions
Is “portar leisa” the same as “porta lisa”?
Yes, in most cases. “Portar leisa” looks like a spelling mistake. The correct Portuguese words are “porta lisa”, which means a plain, flat door. If you search with the correct spelling, you will find more shops and more product details.
Can I use a plain door outside or in a very wet bathroom?
Usually no. Most plain wooden doors are made for inside use and should stay away from direct sun and water. For a front door, choose a door made for outside use. For a very wet bathroom, ask the seller for a door that can handle humidity.
Should I buy a hollow core or a solid core plain door?
It depends on the room and your budget. A hollow core door is light and cheap, and it is fine for places like a closet or a small room where noise is not a problem. A solid core door costs more and is heavier, but it is stronger and blocks more sound. Many people choose solid core for bedrooms and home offices, and hollow core for the rest of the house.
